npm run watch says some problems - laravel

Question

In the browser: Unable to locate Mix file: /vendor/perfect-scrollbar.css. (View: E:\xampp\htdocs\stacklaravel\resources\views\vendor\stack\partials\header.blade.php)
npm run watch says some problems!
I faced an error npm run watch
0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli 'C:\Program Files\nodejs\node.exe',
1 verbose cli 'C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js',
1 verbose cli 'run',
1 verbose cli 'watch'
1 verbose cli ]
2 info using npm#6.14.10
3 info using node#v14.15.4
4 verbose run-script [ 'prewatch', 'watch', 'postwatch' ]
5 info lifecycle #~prewatch: #
6 info lifecycle #~watch: #
7 verbose lifecycle #~watch: unsafe-perm in lifecycle true
8 verbose lifecycle #~watch: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-
lifecycle\node-gyp-bin;E:\xampp\htdocs\stacklaravel\node_modules.bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Program Files\Git\cmd;C:\Program Files\dotnet;C:\Program Files\Microsoft SQL Server\130\Tools\Binn;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn;C:\Program Files (x86)\Microsoft SQL Server\150\Tools\Binn;C:\Program Files\Microsoft SQL Server\150\Tools\Binn;C:\Program Files\Microsoft SQL Server\150\DTS\Binn;C:\Program Files (x86)\Microsoft SQL Server\150\DTS\Binn;C:\Program Files\Azure Data Studio\bin;C:\Windows\System32\OpenSSH;C:\OpenSSH-Win64;C:\ProgramData\ComposerSetup\bin;C:\Program Files (x86)\dotnet;C:\Program Files\nodejs;C:\laragon\bin;C:\laragon\bin\apache\httpd-2.4.35-win64-VC15\bin;C:\laragon\bin\composer;C:\laragon\bin\laragon\utils;C:\laragon\bin\mysql\mysql-5.7.24-winx64\bin;C:\laragon\bin\nginx\nginx-1.16.0;C:\laragon\bin\ngrok;C:\laragon\bin\notepad++;C:\laragon\bin\edited\php\php-7.2.19-Win32-VC15-x64;C:\laragon\bin\putty;C:\laragon\bin\redis\redis-x64-3.2.100;C:\laragon\bin\telnet;C:\laragon\usr\bin;C:\Users\Prosigns\AppData\Local\Yarn\config\global\node_modules.bin;C:\Users\Prosigns\AppData\Roaming\Composer\vendor\bin;C:\Users\Prosigns\AppData\Local\Microsoft\WindowsApps;C:\Users\Prosigns\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files\Azure Data Studio\bin;F:\xampp\edited\php;E:\xampp\php; C:\Users\Prosigns\AppData\Roaming\Composer\vendor\bin;C:\Users\Prosigns\AppData\Roaming\npm
9 verbose lifecycle #~watch: CWD: E:\xampp\htdocs\stacklaravel
10 silly lifecycle #~watch: Args: [ '/d /s /c', 'mix watch' ]
11 silly lifecycle #~watch: Returned: code: 2 signal: null
12 info lifecycle #~watch: Failed to exec watch script
13 verbose stack Error: # watch: mix watch
13 verbose stack Exit status 2
13 verbose stack at EventEmitter. (C:\Program
Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:315:20)
13 verbose stack at ChildProcess. (C:\Program
Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:315:20)
13 verbose stack at maybeClose (internal/child_process.js:1048:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)
14 verbose pkgid #
15 verbose cwd E:\xampp\htdocs\stacklaravel
16 verbose Windows_NT 10.0.16299
17 verbose argv "C:\Program Files\nodejs\node.exe" "C:\Program
Files\nodejs\node_modules\npm\bin\npm-cli.js" "run" "watch"
18 verbose node v14.15.4
19 verbose npm v6.14.10
20 error code ELIFECYCLE
21 error errno 2
22 error # watch: mix watch
22 error Exit status 2
23 error Failed at the # watch script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 2, true ]
What is the cause if these errors? How can i fix it?

Answer 1

This issue is caused by not having nodejs installed or by having an out of date version of nodejs.
When I had this issue I found out I was running node v.10.19.0, I upgraded to 15.6.0 and now it works.
I’m running Ubuntu 20.04, if you are too try the following commands:
sudo apt update
curl -sL https://deb.nodesource.com/setup_15.x | sudo bash -
sudo apt-get install -y nodejs
node -v