win7 express js: 'express' is not recognized in cmd - windows

I have node.js installed and running fine on windows 7 computer. I run
> npm install -g express
> npm install -g express-generator
> npm install -g express-generator#3
and they all install successfully. But when I go to a new folder and try:
> express myproject
I get: 'express' is not recognized as an internal or external command, operable program or batch file
I see 'express', 'express.cmd', and 'node_modules' directory with 'express' and 'express-generator' folders in the C:\Users\ME\AppData\Roaming\npm directory
I added the npm directory to my PATH in case that was missed.
I tried all the solutions I could find:
'Express' is not recognized command (windows)
https://groups.google.com/forum/#!topic/express-js/Cr92_LC_pUk
what else can I try to get express working?

Set Your npm Path variable
c:\Users\\AppData\Roaming\npm
Restart Your CMD

Check that you have the path to the express folder in the path. remember that you need to reopen cmd to apply the changes in the environment variables as modifying them does not modify the variables of the currently working processes, AFAIK. If you are changing system-wide environment variables, you may need to restart Windows.
You also may need to check if PATHEXT contains .CMD extension.

Run the commad prompt as Administrator, this way express will be installed in to system32 and can be recongnized on the commant prompt.so just open command prompt as System administrator then install express globally withnpm install -g express you can then go to any folder and generate your apps with express

If still its not working re-install the node.js and start express install process again.
npm install -g express
npm install -g express-generator

What worked for me was running
npm install -g express
npm install -g express-generator
from the command prompt with Administrator privileges. (If you run windows 8/10 you get this right clicking on cmd icon and choosing 'Run as administrator').

I think you need to update node to the latest version then run the 3 commands mentioned earlier and it should work
npm install -g express
npm install -g express-generator
npm install -g express-generator#3
The key is to update node 1st!

Above answer still did not solve the problem for me. However adding the path of .bin lies fixed it for me.

Related

ng is not recognized as an internal or external command

Running windows 7 Professional 32bit.
I tried running npm install -g angular-cli both under normal or admin.
I also tried adding it to the Enviorment Variables under PATH: (C:\Users\Administrator\AppData\Roaming\npm\node_modules\angular-cli\bin\ng) , with no success also.
What am i doing wrong?
I solved this problem in accordance with the figure:
run in cmd
npm install -g #angular/cli
and then
( open in Windows 10) Control Panel\All Control Panel Items\System
or accordance with the figure
step 1:
step 2 :
step3:
step4:
step5: add missing ng path
Here is new environment variable that you need add: C:\Users\PK\AppData\Roaming\npm\node_modules\#angular\cli\bin
Finally, restart all opened command prompts and try again.
For me it works with:
npm run ng <command>
Adding C:\Users\DELL\AppData\Roaming\npm to System Variable Path worked for me. Please find your appropriate file path to 'npm'
Also, check if you have added your angular-cli\bin path to the path variable.
I am using WIN 10, just figure it out for this problem.
Type the code below in cmd:
npm config get prefix
and copy&paste the path that you get it from the top into your computer environment variables-->user variables box --> path --> edit -- C:\Program Files\nodejs\node_global, your path may different.
Click Ok and reopen your cmd window, type in ng version, then it works! Cheers!
Just open your command prompt (run as administrator). Ensure node --v is 6.9.0 or higher and npm --v is 3.0.0 r higher.
After that run the following command:
npm install -g #angular/cli
Once angular is installed. you can see an entry of angular cli in the path
C:\Users\Dell\AppData\Roaming\npm\node_modules\#angular
Then try ng help. It will work.
1) Enter below command on command prompt
npm install -g #angular/cli
2) Make sure that C:\Users\_username_\AppData\Roaming\npm this path is not hidden.
3) Add C:\Users\_username_\AppData\Roaming\npm and
C:\Users\_username_\AppData\Roaming\npm \node_modules#angular\cli\bin to both enviroment variable path.
4) Open new command prompt and type ng help. It will work.
With a command
npm install -g #angular/cli#latest
It works fine, I am able to run ng command now.
I solved it few days ago, after having the same problem with other global modules, by adding to:
Environment Tables -> System variables -> Path:
C:\Users\Administrator\AppData\Roaming\npm\node_modules\angular-cli\bin;C:\Program Files\MongoDB\Server\3.2\bin
Note that it must not have any spaces after ;
That turned out to be my problem.
I followed below steps for resolution for this issue in Windows 10:
First make sure you have installed Angular CLI . You can use below
to install same.
npm install -g #angular/cli#latest
Make sure that AppData is visible and navigate to path below.
C:\Users\rkota\AppData\Roaming\npm
Same path can be found by running below too:
npm config get prefix
Add the above path i.e. " C:\Users\rkota\AppData\Roaming\npm" in Environment variable PATH and make sure it got added by running path in command prompt.
Close command prompt and now try to run below:
ng --version
you will be able to see CLI version.
execute following lines in order to solve the issue for both not found and undefined version of ng
npm uninstall -g angular-cli
npm uninstall --save-dev angular-cli
npm cache clean
npm install -g #angular/cli#latest
Instead of using the in-built command prompt better start using the NodeJS installed version of command prompt. Then it is going to work perfectly without any issues.
General problem is that OS tries to find the PATH variable with ng keyword and cannot find it.
For me, even after the steps #behrouzmoslem suggested in the top answers to this post I didn't manage to get it work, because after the launch of ng command OS started to respond, but opens up editor file by the path C:\Users\{username}\AppData\Roaming\npm\node_modules\#angular\cli\bin\ng which is actually funny. So, solution is:
Just use npx before any angular executables.
Eg : npx ng serve for serving the angular app or npx ng build --watch to build with watcher.
If you get the error even after following the above step. then try below.
Since it is a node script. I am using the below option to create as of now.
node C:\Users\Administrator\AppData\Roaming\npm\node_modules\angular-cli\bin\ng version
May be symbolic links are required. Not researched further.
On Further Research:
Set Path as : %PATH%;C:\Users\Administrator\AppData\Roaming\npm;
In Windows, npm.cmd file is in the above path. If the above Environment variable is set, you can execute as
ng version
ng init
Open cmd and type npm install -g #angular/cli
In environment variables, add either in the user variable or System variable "Path" value=C:\Users\your-user\.npm-packages\node_modules\.bin
In cmd: c:\>cd your-new-project-path
...\project-path\> ng new my-app
or ng all-ng-commands
I resolved by adding - %AppData%\npm\node_modules#angular\cli\bin\ path to my environment variables path
close cmd and open it again with admin right or reboot ur system.
for me it works only with the flag --force:
npm install -g #angular/cli --force
If everything is fine then you shoud see the folder node_modules in this path:
C:\Users\YOUR_USERNAME\AppData\Roaming\npm\
I faced same issue when i tried to install angular cli locally with command
npm install #angular/cli#latest
After that i got same issue
C:\Users\vi1kumar\Desktop\tus\ANGULAR\AngularForms>ng -v
'ng' is not recognized as an internal or external command,
operable program or batch file
Than i tried to install it globally
npm install -g #angular/cli#latest
In this case it worked I was wondering that is it not possible to install cli globally ?
After doing some research I found this article very helpful hope it will help someone facing similar issue
Working with multiple versions of Angular CLI
This one almost worked for me, but I had to use: %USERPROFILE%\AppData\Roaming\npm
. In Environment Variables.../System variables/Path
Then when I did CMD: "ng -v" I got the correct response for angular cli.
npm install -g #angular/cli helped for me instead of npm install #angular/cli
1- Install
$ npm install -g #angular/cli
2- Make sure where your ng.cmd is present.
3- Then add this path into variables.
I had the same problem on Windows 7, 64 bits running with npm v3.10.8.
I added the path as it was suggested: ( C:\Users.....(your user name)\AppData\Roaming\npm\node_modules\angular-cli\bin\ng) and uninstalled angular-cli.
After this, I cleared the npm cache by npm cache clean as prompted here https://blogs.msdn.microsoft.com/matt-harrington/2012/02/23/how-to-fix-node-js-npm-permission-problems/. This guarantees there are no leftovers.
Reinstalled angular-cli with npm install -g angular-cliand voila.
Hope that may be useful!
In my case I did below steps.
All Programs -> Node JS-> Right click on Node.js Command Prompt and select properties and from Target string at end copy below
/k "C:\Program Files\nodejs\nodevars.bat"
I launched Visual Studio Code and opened below file
C:\Users\gochinta\AppData\Roaming\Code\User\settings.json and gave below
// Place your settings in this file to overwrite the default settings
{
"terminal.integrated.shellArgs.windows":
["/k", "C:\\Program Files\\nodejs\\nodevars.bat"]
}
Now I typed ng -v in my Visual Studio Code Terminal window and it worked.
I was having the same issue when tried with the syntax "ng new " and solved that simply by updating the existing node version from 5.x.x to 8.x.x. After successful updation of node, the syntax worked perfectly for me. Please update the existing version of node. As it is clearly mentioned in angular documentation that these commands require the node version >= 6.9.x. For reference please check https://angular.io/guide/quickstart. It clearly states "Verify that you are running at least node 6.9.x and npm 3.x.x by running node -v and npm -v in a terminal/console window. Older versions produce errors, but newer versions are fine".
I faced same issue on x86, windows 7;
uninstalled #angular/cli
re-installed #angular/cli
checked & verified environmental variables (no problems there)...
Still same issue:
Solution was the .npmrc file at C:\Users{USERNAME}... change the prefix so that it reads "prefix=${APPDATA}\npm"... Thanks to this website for help in resolving it
For me something was wrong in the PATH enviroment variable. I removed all path related to npm and added at the start of PATH this folder:
c:\Users\<your-user-name>\AppData\Roaming\npm\
Make sure you have ; between paths.
I am facing same issue and it's get resolved. At my end reason is i install node and CLI using other user profile and now i am running ng command from other user login. Since node and cli installed using other user login node is not finding anything on C:\Users\<user name>\AppData\Roaming this path and that's why i am getting this error.
I run npm install -g #angular/cli command and restart my machine. Every thing is working fine.
Sometime in the future. Applicable to Windows 8.1 machine.
Run the following commands
npm install -g #angular/cli
Log out or restart your machine.
This should add the required env path, rather than doing it manually.
I also tried to play with cmd by setting environment variable path & etc, but simple answer is use nodejs command prompt.
So you no need to set environment variable path or anything. When you insalled nodejs it will give it's command prompt, by using that you us "ng" command, without any settings.
Since this question is still asked over and over again one year later I will post my answer here as well.
The clue (on Windows only) is to arrange the entries in the path variable right.
As the NPM wiki tells us:
Because the installer puts C:\Program Files (x86)\nodejs before C:\Users\\AppData\Roaming\npm on your PATH, it will always use version of npm installed with node instead of the version of npm you installed using npm -g install npm#<version>.
So your path variable will look something like:
…;C:\<path-to-node-installation>;%appdata%\npm;…
Now you have two possibilities:
Swap the two entries so it will look like
…;%appdata%\npm;C:\<path-to-node-installation>;…
This will load the npm version installed with npm (and not with node) and with the installed Angular CLI version.
If you (for whatever reason) like to use the npm version bundled with node, add the direct path to your global Angualr CLI version. After this your path variable should look like this: …;C:\Users\<username>\AppData\Roaming\npm\node_modules\#angular\cli;C:\<path-to-node-installation>;%appdata%\npm;…
or …;%appdata%\npm\node_modules\#angular\cli;C:\<path-to-node-installation>;%appdata%\npm;…
for the short form.
This worked for me since a while now.

How do I update npm on Windows?

When I install node 0.10.33 from the msi ( http://nodejs.org/download/ ), I get an old version of npm (1.4.28). How can I upgrade npm on Windows?
npm install -g npm
does not work; I still have the old npm.
You need to follow the Windows upgrade instructions ( https://docs.npmjs.com/try-the-latest-stable-version-of-npm )
tl;dr - npm -g install npm does work, but the old version of npm is still in your PATH.
To fix this, do one of these:
Option 2: remove both of
C:\Program Files (x86)\nodejs\npm
C:\Program Files (x86)\nodejs\npm.cmd
Or
Option 3: Open cmd.exe as administrator, navigate to C:\Program Files (x86)\nodejs and
then run the installation without -g:
npm install npm#latest
*There is an npm package that automate this Option 3:
npm install -g npm-win-upgrade
We at Microsoft Open Source wrote a small tool to automate the process outlined above. You can find it here or just install and run it by executing the following in an elevated command prompt / PowerShell:
npm install -g npm-windows-upgrade
npm-windows-upgrade
There May be many ways to update your npm in Windows
Way 1
Open you power shell as Administrator and run following commands step by step.
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
npm install -g npm-windows-upgrade
npm-windows-upgrade
Here you can select your preferred version of npm
Ready to go !
Way 2
You can simply upgrade to the latest npm version with following command
npm install npm#latest -g
or if you want a specific version of npm simply run
npm install npm#{version} -g for example npm install npm#3.3.12 -g
Now simply run npm --version or npm -v to know your current version of npm
3.3.12 is my preferred version of npm that best suits for approximately every package.
UPDATE
npm install npm#latest -g
the correct npm version is now already shipped with node.js so you can directly switch node version.
you can nvm (Node Version Manager) package to switch node versions very quick and easy.
So, TL;DR; this worked:
Uninstall node
From a command prompt, run where npm
If you had npm installed via chocolatey, you'll see a path like C:\ProgramData\chocolatey\bin\npm.exe - DELETE it!
Now install NodeJS using the appropriate MSI from https://nodejs.org/en/download/
In your favourite shell, type npm --version - this should now echo the version of NPM that came with NodeJS (at the time of this writing, that version is 3.10.10)
This is what worked for me (goofy me!)
I had (age ago) installed npm via chocolatey, which created a chocolatey initiated npm.exe in C:\ProgramData\chocolatey\bin\npm.exe. This was npm version 1.4.9 and wouldn't update no matter what one did including uninstall and reinstall NodeJs.
=======
EDIT: Better way to install node and npm
As of today (27/06/2017), the best way to install and manage node and npm is to install nvm (Node Version Manager) as explained here: https://github.com/coreybutler/nvm-windows. Once you have nvm, installing any node version is super easy:
Open your favourite console (CMD, Cmder, PowerShell)
Type nvm install 6.10.2 (to install node version 6.10.2)
To see the currently active version, type nvm list. This prints something like below:
6.9.3
* 6.9.2 (Currently using 64-bit executable)
6.9.1
6.10.2
It's late 2021 and a lot of these answers can be confusing. npm install -g npm can break your installation. (When I did this, I had to run the Node MSI "Repair" tool to get it working again.) npm-windows-upgrade has not seen a release in over 2 years, and the repo has been archived by its maintainer.
As far as I can tell, there are two options that seem to work reliably today.
Use where npm from DOS prompt or which npm from WSL / Git Bash / etc, to determine which NPM binary is being used.
cd to that path, then run npm install npm#latest (without the -g flag!). npm update npm should have the same effect. You may need an elevated prompt (Run As Administrator).
Verify that this worked by running npm --version.
This worked for me. The other option is:
Completely uninstall NPM + Node using the Add/Remove Programs settings page.
Install an MSI from the Node website.
To upgrade NPM on windows 10
Uninstall Node.js
Restart your system
on command prompt type where npm
delete if npm and npm-cache folder exists in AppData/Roaming
Install Node.js (https://nodejs.org/en/)
You need to follow the Windows upgrade instructions
https://www.npmjs.com/package/npm-windows-upgrade
First, ensure that you can execute scripts on your system by running the following command from an elevated PowerShell. To run PowerShell as Administrator, click Start, search for PowerShell, right-click PowerShell and select Run as Administrator.
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
npm install --global --production npm-windows-upgrade
npm-windows-upgrade
Want to just install the latest version?
1.npm-windows-upgrade --npm-version latest
I did something similar to Sam Mikes. I'm only sharing this because I couldn't get either of his solutions to work on my rig. After a bit of playing around, this is what worked for me:
Remove NPM/Node from your Environment Variables, both for user and system.
Close your open console if you have one open, then open a console as administrator
Change directories to %USERPROFILE% -- that's a window's environment variable that takes you to C:\Users\CurrentlyLoggedInUser
Run from the console in %USERPROFILE%, "C:\Program Files\nodejs\npm" install npm -g (you might have yours in the x86 folder)
If this solution would work for you, step 4 would have worked, and npm -v will show a an up-to-date version
Re-add Node (in Program Files)/NPM (in App Data -- the one installed in Program Files should be the old one) to your user and system environment variables
Note: I've used the Microsoft automated script in the past to fix this, but only because I didn't realize how easy it would be to do it myself.
So none of the previous answers solved the issue for me so I thought I would post my specific solution, which I managed to figure out by going through all the other answers so they were really helpful.
My issue was because I had used chocolatey to install node and possibly npm (looking at chocolatey site now I shouldn't have done that).
To solve the issue I simply had to run the relevant choco uninstall commands for npm and node and then everything switched to the other version of node which I had also installed using the node msi (from node's website).
I hope that helps anyone else that may have gone down the same path as me.
I tried almost every answer but none of them works my way.
Neither npm-windows-upgrade worked nor did the npm install npm#latest etc etc worked.
For people like me I will suggest you guys downloading the latest installer from Node.js website, let the existing version of node directory be on it's place and without changing anything just install the msi installer and you will end up with an upgraded version of node.
My case was upgrading node from 6 to 8.9.3
all npm install commands were getting stuck and will throw error (behind proxy error) after sometime. setting up proxy was not helping. This is what I did.
Had 8.11 nodeJS
Uninstalled NodeJS from Programs & Features with the uninstaller.
Reboot (or you probably can get away with killing all node-related processes from Task Manager).
Look for these folders and remove them (and their contents) if any still exist. Depending on the version you installed, UAC settings, and CPU architecture, these may or may not exist:
• C:\Program Files (x86)\Nodejs
• C:\Program Files\Nodejs
• C:\Users{User}\AppData\Roaming\npm (or %appdata%\npm)
• C:\Users{User}\AppData\Roaming\npm-cache (or %appdata%\npm-cache)
• C:\Users{User}.npmrc (and possibly check for that without the . prefix too)
Check your %PATH% environment variable to ensure no references to Nodejs or npm exist.
If it's still not uninstalled, type where node at the command prompt and you'll see where it resides -- delete that (and probably the parent directory) too.
Reboot, for good measure.
Installed 6.11 nodejs then it worked.
Use npm-windows-upgrade tool to simply upgrade. Steps are provided in the link.
For update node npm on Windows
I have to delete node in:
C:\Users**YOUR USER**\AppData\Roaming
And reinstall node

gulp command not found - error after installing gulp

I've installed gulp both globally and locally using
npm install gulp
npm install gulp -g
npm install gulp-util
npm install gulp-util -g
When try to run gulp i get
'gulp' is not recognized as an internal or external command, operable program or batch file.
Running npm list gulp (or -g), I gulp#3.7.0 with the location of either my global or local gulp installation.
I've tried running node gulpfile.js pointed to my gulpfile, and it runs without error, and of course, it starts with require('gulp').
Any suggestions on getting gulp working on Windows(8.1)?
You forgot to install the gulp-cli package:
npm install -g gulp-cli
Then you can run the command "gulp" from the command line.
The issue and answer can be found in this question: https://stackoverflow.com/a/9588052/1041104
The npm modules such as gulp are not installed to the path. Thus are not found when you run them in the CMD.
If gulp has been installed globally, you can use the process below:
Create an environmental variable called NODE_PATH
Set it to: %AppData%\npm\node_modules or %AppData%\npm on windows 8-10
Close CMD, and Re-Open to get the new ENV variables
Running npm ls and npm ls -g shows that they are installed, but the CMD can not find them due to the missing link.
Be sure that you have gulp and gulp.cmd (use windows search)
Copy the path of gulp.cmd (C:\Users\XXXX\AppData\Roaming\npm)
Add this path to the Path envirement variable or edit PATH environment variable and add %APPDATA%\npm
Reopen cmd.
Add %APPDATA%\npm to front of Path, not end of the Path.
Install gulp globally.
npm install -g gulp
Install gulp locally in the project.
npm install gulp
Add below line in your package.json
"scripts": {
"gulp": "gulp"
}
Run gulp.
npm run gulp
This worked for me.
I am using Windows 8.1. I had the same problem.
I installed gulp using Node.js command prompt
npm install -g gulp
Then go to the required directory in Node.js command prompt and try
gulp -v
If you get gulp local version not found exit the current Node.js command prompt and try the above command in a new Node.js command prompt
I tried the NODE_PATH mentioned by #SteveLacy but the command prompt was still not able to detect gulp command
Had the same problem, not really best solution but install it globally:
npm install -g gulp
Of course it's best to still have it in package.json, so you can do the following to install it locally and add an entry into package.json:
npm install --save-dev gulp
Everything else (gulp plugins) install also locally.
The simple solution just do npm link gulp
I was having the same problem when trying to get gulp working on a co-workers VM. It seems the problem stems from the users folder.
Adding NODE_PATH in my environment variables didn't fix the problem.
If you edit your 'Path' variable in your system variables and add '%APPDATA%\npm' at the end of that, it should fix the problem... Unless you or somebody else npm installed gulp as another user than the one you're currently logged in as.
If you want it to be available for all users, put 'C:\Users\yourUser\AppData\Roaming\npm'(or where ever you have gulp) explicitly instead of using '%APPDATA%\npm'. You can also move the files to a more user-indifferent path.
Don't forget to start a new cmd prompt, because the one you have open won't get the new 'Path' variable automatically.
Now 'gulp'.
One right way:
Cmd + R : type "%appdata%"
Go to npm folder
Copy whole path like "C:\Users\Blah...\npm\"
Go to My Computer + Right Click "Properties"
Advanced System Settings (On the left)
Click on Environment Variables
Click on Edit Path
Add that "C:\Users\Blah...\npm\" to the end and type ";" after that
Click ok and reopen cmd
You should first install gulp as global using:
npm install gulp -g
Otherwise the path solution will not resolve the problem.
Then add the npm modules path to the PATH using:
PATH = %PATH%;%APPDATA%\npm
In my case it was that I had to install
gulp-cli by command npm -g install gulp-cli
Try to add to your PATH variable the following:
C:\Users\YOUR_USER\AppData\Roaming\npm
I had the same problem and I solved adding the path to my node modules.
I had a similar problem setting it up in windows 10. My answer is windows specific (look at the answers for modifying path in bash for a linux or OSX solution)
The core problem I had was that npm's folder was not registered in the path.
I originally tried changing this in cmd prompt.
setx path "%path%;%appdata$\npm"
Note that I used setx instead of set to ensure that the update to the environmental variable remains. Also note that it's a backslash.
This should work but for me it didn't because setx has a limit of only accepting 1024 characters... (yes it's nonsensical to me as well).
So try the above and if you get a warning like did about reaching the 1024 limit, then you can do the other way I ended up doing.
First while youre still in the console, type: echo %appdata%\npm ... this is your npm folder that you want to add to the path so add it to your clipboard.
You have to go into the registry and reach the following folder:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
Then append the 'Path' value with the npm folder path in your clipboard. Reboot to activate the new value and you should now be good to go.
Finally, just test it all out
>npm install -g gulp
>gulp
This ended up being a 'user' issue with me. I had installed npm and node on the system logged in as user1, then I set-up user2. I could run node, and I could run npm commnds, but could not run any npm packages from the command line.
I uninstalled node and npm, and reinstalled under the correct user in order to solve the problem. After that I can run packages from the command-line without issue.
The top answer did not work for me.
I am using a virtual machine that had a previous owner. The previous owner had an old version of npm installed. Using that, I was installed gulp globally with npm install -g gulp. Running the command gulp would return 'gulp' is not recognized as an internal or external command, operable program or batch file.. As I said, the top Answer did not fix my problem. I basically had to reinstall nodejs.
Solution
Re-download nodejs
npm install -g gulp
gulp -version
This fixed the problem for me.
I had v0.12.3 of Nodejs on Win7 x64 and ran into similar issues when I tried installing gulp. This worked for me:
Uninstalled Nodejs
Installed Nodejs v0.10.29
npm install -g npm
npm install -g gulp
The NodeJS installer appears to add the user/AppData/Roaming/npm path to the user environment path, which is appropriate.
Normally, the PATH environment variable at the command line is the combination of the user environment path and the system environment path.
However, if the user environment path + the system environment path is larger than about 1920 characters, Windows does not not combine the user and system paths - only the system environment path is used.
See: https://stackoverflow.com/a/21270921/301152
So, when you open the Advanced System Settings in Windows to edit your environment variables, take a look to see if the user/AppData/Roaming/npm path is already in your user environment PATH. If it is, then the problem is that your user + system paths are too long, causing Windows to ignore your user path. Trim your user and/or system path strings and gulp should work as installed.
If you can't find anything to trim away from your user and system paths, then add the user/AppData/Roaming/npm path to the system environment path and call it a hack.
I was facing the same problem after installation. So i tried running cmd with elevated privileges (admin) and it worked.
Screen capture:
Add this path in your Environment Variables PATH
C:\Users\USERNAME\AppData\Roaming\npm\
(Windows 10) I didn't like the path answers. I use choco package manager for node.js. Gulp would not fire for me unless it was:
Globally installed npm i -g gulp and local dir npm i --save-dev gulp
The problem persisted beyond this once, which was fixed by completely removing node.js and reinstalling it.
I didn't see any comments about local/global and node.js removal/reinstall.
This is most commonly because it is not found on environment variables as others have pointed out. This is what worked for me.
echo %PATH%
This will show you what's one your PATH environment variable. If node_modules is not there there do the following to add it from your APPDATA path.
PATH = %PATH%; %APPDATA%\npm
I resolved it by adding
C:\Users\[USER]\AppData\Roaming\npm
to PATH
and not
C:\Users\[USER]\AppData\Roaming\npm\node_modules
I already had the one condition from this answer (I don't know why)
https://stackoverflow.com/a/27295145/1175496
That is, my PATH already included %APPDATA%\npm
In my case, the problem was npm was not installing modules there (again, I don't know why)
Therefore I needed to do this:
$ npm config set prefix -g %APPDATA%/npm
After that, running
$ npm install -g gulp (or installing any other module) put the module in the place where PATH expects it.
This works for me:
npm link gulp
npm update
On my Windows 10 Enterprise, gulp was not installed in %AppData%, which is C:\Users\username\AppData\npm\node_modules on my machine, but in C:\Users\username\AppData\Local\npm\node_modules.
To get gulp to be picked up at the command prompt or in powershell, I added to the user PATH the value C:\Users\username\AppData\Local\npm. After that it worked like a charm. Naturally I had to close the command prompt or powershell window and re-open for the above to take effect.
Had gulp command not found problem in windows 10 and Adding "%AppData%\npm\node_modules" doesn't work for me.
Do this steps please:
After doing
npm install -g npm
And
npm install -g gulp
Add
C:\Users\YourUsername\npm
to Path in System Variables.
It Works for me after all solutions failed me.
Run npm install gulp -g
if you are using windows, please add the gulp's dir to PATH.
such like C:\Users\YOURNAME\AppData\Roaming\npm\node_modules\gulp
In windows:
Using your windows explorer, Navigate to your vagrant shared folder (I am using scotchbox by the way) e.g C:\scotchbox/public/gulpProject
In the address bar of the folder, type cmd and press Enter
Do your gulp installation npm install
In short:
You should add %NODE_PATH% to the system variable Path if the other answers don't work.
The reason:
The point is, command prompt only executes programs under the Path system variable, not the user variables. If you have NODE_PATH set as a user variable, add %NODE_PATH% to Path.
I asked here and got marked duplicate for a question with different intention :(
NPM Windows doesn't execute program under the User Variable path [duplicate]
In Windows:
Press the following two keys: Windows + r
Type control /name microsoft.system into the run dialog box that appears from the previous step.
Select Advanced System Settings from the left of the window pane
Click the Advanced tab on the system properties box that appears and click the Environment Variables button.
Edit the PATH User environment variable.
Click New on the edit environment variable window that pops up for the PATH variable and add the following: %APPDATA%\npm to the start of the PATH environment variable (as shown in the image below).
Close your Command Prompt and reopen it.

How can I update npm on Windows?

This question's answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions.
I tried this:
sudo npm cache clean -f
sudo npm install -g n
sudo n stable
...but it didn't work.
How do I do this on Windows?
Note: The question is specifically asking how to upgrade npm, not Node.js. If you want to update Node.js over a CLI on windows, I recommend running winget upgrade -q NodeJS or use chocolatey for that.
What method should I choose to update NPM?
Node.js v16 or higher?
npm install -g npm
Node.js v14 or below?
Consider updating to latest LTS release of Node.js
npm-windows-upgrade
Upgrade with npm-windows-upgrade
Run PowerShell as Administrator
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
npm install -g npm-windows-upgrade
npm-windows-upgrade
Note: if you run the Node.js installer, it will replace the Node.js version.
Upgrades npm in-place, where Node.js installed it.
Does not modify the default path.
Does not change the default global package location.
Allows easy upgrades and downgrades and to install a specific version.
A list of versions matched between NPM and Node.js (https://nodejs.org/en/download/releases/) - but you will need to download the Node.js installer and run that to update Node.js (https://nodejs.org/en/)
Upgrade with npm
npm install -g npm
Note: some users still report issues updating npm with npm, but I haven't had that experience with v16+.
Download and run the latest MSI. The MSI will update your installed node and npm.
To update NPM, this worked for me:
Navigate in your shell to your node installation directory, eg C:\Program Files (x86)\nodejs
run npm install npm (no -g option)
Like some people, I needed to combine multiple answers, and I also needed to set a proxy.
This should work for anyone. I have zero desire to run an EXE file or MSI file .. uninstall/ reinstall, or manually delete files and folders. That is so 1999 :P
Run this to update NPM:
Run PowerShell as administrator
npm i -g npm // This works
I am not thinking this code actually upgrades your npm version below
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
npm install -g npm-windows-upgrade
npm-windows-upgrade
(courtesy of "Robert" answer)
Run this to update Node.js:
wget https://nodejs.org/download/release/latest/win-x64/node.exe -OutFile 'C:\Program Files (x86)\nodejs\node.exe' (courtesy of BrunoLM answer)
If you get `wget : Could not find a part of the path .... "**, see below ...scroll down. Reading Web Response... It's at least punching through the firewall /proxy (if you have one or have already ran the code get through ...
Otherwise
You might need to set your proxy
npm config set proxy "http://proxy.yourcorp.com:811" (yes, use quotes)
2 possible errors
It cannot find path of the path solution "where.exe node" (courtesy of Lonnie Best Answer)
E.g. if Node.js is NOT living in "Program Files (x86)" perhaps with where.exe, it is living in 'C:\Program Files\nodejs\node.exe'.
wget https://nodejs.org/download/release/latest/win-x64/node.exe -OutFile 'C:\Program Files\nodejs\node.exe'
Now perhaps it tries to upgrade but you get another error, "node.exe is being used by another process."
Close /shutdown other consoles .. command prompts and PowerShell windows, etc. Even if you're using npm in a command prompt, close it.
npm -v (3.10.8)
node -v ( v6.6.0)
DONE. I'm at the version that I want.
You can update your npm to the latest stable version with the following command:
npm install npm#latest -g
Use PowerShell to run it. This command doesn't need windows administrator privileges and you can verify the result with npm -v
You can use Chocolatey which is a package manager for windows (like apt-get for Debian Linux).
Install fresh (you might need to uninstall previously installed versions)
> choco install nodejs
Update to the latest version
> choco update nodejs
and for npm
> choco update npm
The previous answers will work installing a new version of Node.js (probably the best option), but if you have a dependency on a specific Node.js version then the following will work: "npm install npm -g". Verify by running npm -v before and after the command.
This works fine for me to update npm on Windows 7 x64:
Windows start
All Programs
Node.js
Node.js command prompt (alternative click)
Run as administrator
$ npm -g install npm
remove C:\Program Files\nodejs\npm.cmd the new npm will be at C:\Users\username\appdata\roaming\npm\npm.cmd
Hope this helps.
Open PowerShell as administrator.
To install a first time you can use this small script to download the latest msi and run it
$nodeLatest=((curl https://nodejs.org/download/release/latest/).Content | findstr x64.msi) -replace "<(.*?)>", "" -replace "\s+.+", "";
wget "https://nodejs.org/download/release/latest/$nodeLatest" -OutFile (join-path $env:TEMP node.msi); Start-Process (join-path $env:TEMP node.msi)
On future upgrades you can download just node.exe and update npm with
wget https://nodejs.org/download/release/latest/win-x64/node.exe -OutFile 'C:\Program Files\nodejs\node.exe'
npm i -g npm
You should now have the latest node and npm.
I went a little further and decided to implement a nvm for Windows.
https://github.com/brunolm/nvm
Install-Module -Name power-nvm
nvm install latest
nvm default latest
1. Installing latest npm version
npm install –g npm#latest
(You can type "npm –version" to check that)
2. Installing Node
a. Install node new version via following URL: https://nodejs.org/en/download/current/
Follow the default choices
b. Remove C:\Users\\AppData\Roaming\NPM
c. Remove C:\Users\\AppData\Roaming\npm-cache
Optionally:
d. (Delete node_modules folder in your current project folder)
e. npm cache verify
f. npm install
Use Upgrade npm on Windows
This is the official document for a user to upgrade npm on Windows!
Here is my screenshot!
For what it's worth, I had to combine several answers...
Uninstall Node.js in control panel Add/remove programs.
Delete directories, both C:\Program Files (x86)\nodejs\ and C:\Program Files\nodejs\ if they exist.
Install the latest version, http://nodejs.org/download/
How to Update Node.js:
Uninstall Node.js. Click the Start menu, type "Change or Remove a Program", click on the item shown, find Node.js in the list and uninstall it.
Delete directories, both C:\Program Files (x86)\nodejs\ and C:\Program Files\nodejs\ if they exist.
Install the latest, https://nodejs.org/en/download
The uninstall/delete/install seems unnecessary, but it often is and this will save your time.
These instructions come from Microsoft.
How to Update NPM:
https://www.npmjs.com/package/npm-windows-upgrade
This is the official documentation for upgrading npm on windows.
All was tested and working on Windows 10 (2017).
this is best tool to maintain version of NODE.Js i NVM
Node Version Manager (nvm) for Windows
but for Windows, with an installer. Download Now! This has always been a node version manager, not an io.js manager, so there is no back-support for io.js. However, node 4+ is supported.
For me, after totally uninstalling node 10.29, and then installing node 4.2.2, there remained a 10.29 node.exe file in my c:\windows folder.
I found this by using the following command:
where.exe node
The command returned:
C:\Windows\node.exe
C:\Program Files\nodejs\node.exe
So even though I had successfully installed version 4.2.2 via the msi executable, the command node -v would continue to report I was running version 10.29.
I resolved the problem by deleting this file:
C:\Windows\node.exe
Thereafter, node -v reported the upgraded version instead of the unwanted remnants of the prior version.
For NodeJS
Download required node version msi from here and install
for Npm
Run PowerShell as Administrator
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
npm install -g npm-windows-upgrade
npm-windows-upgrade
This works fine for me
Run Command Prompt as Administrator
Navigate to the folder containing nodejs (eg. C:\Program Files\nodejs)
Run Powershell -ExecutionPolicy Unrestricted
Run npm-windows-upgrade
This will show list of versions available to install. Just select your desired version by moving up/down key & Press Enter.
This'll update your npm
To check the current version of npm
Run npm --version
Command Prompt Screenshot
I was also facing similar issues. I followed below mentioned steps and it worked for me:
go to Windows > Start > Node.js
right click on Node.js command prompt
click on Run as administrator
ping registry.npmjs.org
npm view npm version
cd %ProgramFiles%\nodejs
npm install npm#latest
and npm updated successfully. Earlier I was trying for CMD and that was throwing error. may be some path issue that got resolved by running NodeJs Command Prompt. hope it'll work for you. try this.
OK guys, I read (tried on Windows) all the previous stuff and all of these answers have their own disadvantages.
For the best way to update Node.js (at least for me), go to https://nodejs.org/en/
Then download the last version and install it in same folder you installed the previous version in - 1 min and it's done. You don't need to remove any old files.
Then update npm typing in cmd: npm install --save latest-version
To install the updates, just download the installer from the Nodejs.org site and run it again. The new version of Node.js and NPM will replace the older versions.
The easiest way I found so far to update Node.js is using Chocolatey.
Use Chocolatey to install or update the latest version of Node.js on Windows:
Step 1: First, ensure that you already have Chocolatey installed. If not, use an administrative shell to install chocolatey through cmd.exe or PowerShell.exe. For more information, visit: https://chocolatey.org/docs/installation
Step 2: Install with cmd.exe. Run the following command:
#"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"
To install with PowerShell.exe, visit: https://chocolatey.org/docs/installation
Step 3: Install or Update with following commands on cmd.exe (on administrative mode)
To Install Node.js: cinst nodejs.install
To Update Node.js: cup nodejs.install
follow these steps for window 10 or window 8
press WIN + R and type cmd and enter
npm i -g npm#next
npm i -g npm#next OR npm i -g node#{version}
Remove environment path C:\Program Files\nodejs from envrionment variable PATH.
type refreshenv in cmd
Now you will have your new version which you installed.
Note: If you don't remove path. You will see the previous version of node.
PowerShell does not execute npm directly, so I suggest using
.\npm install -g npm-windows-upgrade
.\npm-windows-upgrade
And it failed with:
You wanted to install npm 6.1.0, but the installed version is 3.10.10.
A common reason is an attempted "npm install npm" or "npm upgrade npm". As of today, the only solution is to completely uninstall and then reinstall Node.js. For a small tutorial, please see http://aka.ms/fix-npm-upgrade (dead link).
Please consider reporting your trouble to npm-windows-upgrade.
I followed josh3737 and installed the latest MSI from the Node.js homepage.
But I had the additional problem that I still had the old version of Node.js and npm on the command line. The problem was caused by the new installation, and that it was installed into
C:\Program Files (x86)\nodejs\
instead of the previous installation in
C:\Program Files\nodejs\
The new installation added the new directory into my path variable after the old one. So the old installation was still the active one in the path. After removing C:\Program Files\nodejs\ from system path and C:\Users\...\AppData\Roaming\npm from user path and restarting the command line the new installation was active.
Maybe the least path was a local problem that has nothing to do with the new installation. I had two links to AppData\Roaming\npm in it. And maybe this can also be fixed by first uninstalling Node.js and installing the new version afterwards.
You can use these commands:
npm cache clean
npm update -g [package....]
If you are upgrading from a previous version of node, then you will want to update all existing global packages.
You can also specify the package name to be updated.
This might help someone. Neither "npm-windows-upgrade" nor the installer alone did it for me. Powershell was still using an older version of node and npm.
So this is what I did (worked for me):
1. Download the latest installer from nodejs.org. Install node. It will update your node; everywhere (Powershell, cmd etc.).
2. Install the npm-windows-upgrade package (npm install -g npm-windows-upgrade) and run npm-windows-upgrade.
I didn't uninstall anything and didn't set any paths.
In my case, I discovered that I had two copies of Node.js installed. One under "C:\Program Files\nodejs" and another under "C:\Program Files (x86)\nodejs".
This is what worked for me.
Open a local folder other than the one in which nodejs is installed.
Install npm in that folder with command npm install npm
Navigate to the folder containing node js. (C:\Program Files\nodejs\node_modules)
Delete the npm folder and replace it with the npm and bin folders in the local folder.
Run npm -v. Now you would get updated version for npm.
Note: I tried installing npm directly in "C:\Program Files\nodejs\node_modules" but it created errors.
Start
Search for windows powershell
Right click and run as administrator
Type: where.exe node (returns the path of node.exe in your system. Copy this)
wget https://nodejs.org/download/release/latest/win-x64/node.exe -OutFile 'PATH-OF-NODE.EXE_WHICH_YOU_COPIED_JUST_NOW'
To check if it has worked, go to your Git bash/Normal command prompt and type: node -v
Here you can find the current version of node: https://nodejs.org/en/blog/release/

express command not found in bash after installing it with npm

just installed new ubuntu vm to test around with node
installed things in this order:
node
mongodb-server
npm
express
mongoose
now, trying to create a new app i noticed express cannot be used in the shell.
express -v returns
express: command not found
i installed npm like this
curl http://npmjs.org/install.sh | sudo sh
and i installed express this way
npm install express
any ideas?
Starting from express 4.00 you also need to install express generator with:
npm install -g express-generator
Only after this will you be able to run express as a command!
For confirmation see: ExpressJS.com - Migrating to Express 4
npm install express -g
You need to install it globally.
Npm 1.0 installs modules locally by default. So the bash executable lives in /node_modules/bin/. You can add that folder to PATH or you can just install express globally so that it's picked up by PATH
I had this problem and was installing node via Homebrew. The problem was being caused by Homebrew.
So I did:
brew uninstall node
and then installed node using the installer on the nodejs.org site.
Then I ran:
npm install -g express
And voila no problems.
With the release of Express 4.0.0 it looks like you need to do sudo npm install -g express-generator.
EDIT 2017-06-29: this answer is 6+ years old, but still gets votes/traffic. Instead (for any new users with problems) I'd trust both NODE_PATH official doc and its corresponding bit about REPL usage before this answer.
Quite similar to this issue, node was not finding my global express install, so a require('express') statement would fail.
What fixed this for me, when a global install wasn't being picked up by node was making sure NODE_PATH env. variable was is set correctly.
On Ubuntu 11.04, with node version 0.5.0-pre, the paths me were:
NODE_PATH=/usr/local/lib/node_modules:/usr/local/lib/node
So, to clarify you might want to export the above env. variable, or you can just test the above values out by doing:
NODE_PATH=/usr/local/lib/node_modules:/usr/local/lib/node node ./you_app.js
I had to do a combination of things:
From node.js modules path:
echo 'export NODE_PATH="'$(npm root -g)'"' >> ~/.bash_profile && . ~/.bash_profile
This sets the file path in bash profile (can be viewed using nano .bash_profile
Slightly modified from Raynos (above) since I needed sudo:
sudo npm install express -g
Slightly modified from Fazi (above) since I needed sudo:
sudo npm install -g express-generator
TEST YOUR APPLICATION:
run `DEBUG=myapp:* npm start`
Ref: http://expressjs.com/en/starter/generator.html
IF you are running windows:
export NODE_PATH="C:\Users\IMarek\AppData\Roaming\npm\node_modules"

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