My question is a little different from Setup Maven for IntelliJ 13.
My IntelliJ IDEA version is 14.0.3, and I didn't download any Maven in my computer before. I can create Maven project well, but the maven home directory is empty:
and the Maven menu doesn't contain clean, compile, package ...,
If the IntelliJ IDEA has built-in Maven, where is the Maven?
So, it seems that IntelliJ IDEA hasn't downloaded the Maven itself and I should download it and set the M2_HOME manually, right ?
Yes, you have to download and install a Maven distribution manually. As far as I know, IntelliJ doesn't do it automatically. As for the "Maven home directory" field, my preference is to explicitly choose the directory where Maven was installed, rather than setting a global "M2_HOME" environment variable.
Related
I just started to use Maven and IntelliJ IDEA.
I imported a project into IntelliJ IDEA which requires Maven. I didn't install Maven to my computer but I have 2 plugins in IntelliJ IDEA named as "Maven" and "Maven Extension". And the code I have is running without any dependency problem.
In that case, do I still need to install Maven from the web or just the plugins in the IntellJ are enough for projects with Maven?
Can we say that for every project? If someone can explain the logic behind I would be very happy.
Thanks a lot!
Intellij comes with a bundled version of Maven (see File -> Settings -> Build, Execution, Deployment -> Build Tools -> Maven; the property 'Maven home directory' on that screen by defaults points to 'Bundled (Maven 3)').
You don't have to, but you can still install your own version of Maven, and point that property to it. It has the advantage of being able to run maven from the command-line, which is a better guarantee of build-stability (i.e. building the same project in different environments with the same result) than building directly inside of your IDE. And often is way more helpful in investigating build problems.
Dear Stackoverflow Community, I have the following problem with my spring boot starter application. I imported the starter project as a new maven project into IntelliJ. But IntelliJ does not find the dependencies I specified in the pom.
Image of my Application Class:
If I try to run the project I get the following error message.
Image of the Error Message:
I already tried everything from re-installing IntelliJ to re-importing the project or redownloading the dependencies. I simply dont know why IntelliJ doesn´t find the dependencies.
My pom.xml looks as following
Image of my pom.xml:
The first time I tried to edit the pom.xml it said to me "this file does not belong to the project". Maybe this might be one reason.
Running the whole thing with 'mvn install' or 'mvn clean verify' works.
Try this and then build: mvn -U idea:idea
Had the same problem. I have tried everything: invalidating cache, deleting the whole .m2 folder, changing settings, reloding the project, nothing helped.
The solution for me was to delete the .iml files which are IntelliJ module files used for keeping module configuration. After reopening the project it worked.
The idea was not mine, I found the hint here: https://intellij-support.jetbrains.com/hc/en-us/community/posts/203365204--package-does-not-exist-error-despite-autocomplete-being-aware-of-them
Sometimes your workspace could get corrupted.
In my case, I tried to Reload the project and it worked
in my case changed JDK version in Maven importer from JDK 11 to my local JDK version 1.8
Here is how my IntelliJ settings for spring boot application looks like
Click open -> browse your workspace -> and select POM.xml file
Check this in your intelliJ settings
Do this too [Settings --> Maven --> Importing]
I just had the same issue. My solution was to remove all dependencies from the pom, reload via maven -> Reload All Maven Projects. Run mvn compile. Add dependencies back to the pom, maven -> Reload All Maven Projects. Run mvn compile.
Now the Intellij build works.
You need to change Maven's JDK for importing option from Project JDK to the Path variable for Java on your machine.
You can get to this by going to Settings -> Build, Execution, Deployment -> Build Tools -> Maven -> Importing. Scroll down to the bottom and look for JDK for importing:. Select from the list the path variable for JAVA.
For Windows users, JAVA_HOME should be an option in the drop-down list.
Follow these steps, your problem should be solved. You just need to add Spring-framework-starter-web and Spring-framework-starter-tester from your pom.xml file.
Got to generate(ALT+Insert)
Add dependencies
Search "springframwork"
Add...
Here is the link
In my case, adding the project as maven project helped .
Forgive me asking following questions. I am totally lost in regards to maven+eclipse. I checked out someone's java project (maven built) from SVN to my local eclipse (kepler). When I click Windows > Preferences, I see Maven.
question 1)
Is this a maven plugin? When developers say maven in eclipse, are they referring to maven plugin? maven and maven plugin are two separate components?
question 2)
when I click on user settings, C:\Users\myName.m2\settings.xml is missing. Exact error message is "User settings file doesn't exist". Does it get created when you install maven plugin at first time?
question 3)
I found three folders may have to do with maven C:\workspace\maven_local_repo_artifactory directory, C:\maven_local_repo and C:\Users\myName.m2\respository but not sure how they get created and what is the relationship among them.
question 4)
Is it ok to remove current maven plugin from eclipse and re-install it then check out the java project from SVN? I think my maven or maven plugin settings are not correct in my local box.
1) Is this a maven plugin? When developers say maven in eclipse, are
they referring to maven plugin? maven and maven plugin are two
separate components?
Yes. This is the maven-plugin. maven-plugin uses the configurations of maven (%M2_HOME%/conf).
If you wanna work with maven, you need to install it on your machine. Then you can run maven commmands. In addition, if you want to invoke maven commands within eclipse (conveniently) - you can install the eclipse-plugin. "maven-plugin" is a plugin for eclipse, that lets you use maven within Eclipse conveniently.
2) when I click on user settings, C:\Users\myName.m2\settings.xml is
missing. Exact error message is "User settings file doesn't exist".
Does it get created when you install maven plugin at first time?
By default, the maven-plugin assumes that your settings.xml (which is the configuration file of maven) is in the path you have mentioned. However, there are cases (like in my case) where the config file is not there, but under %M2_HOME%/conf. you can update it in Eclipse, and the error will disappear.
3) I found three folders may have to do with maven
C:\workspace\maven_local_repo_artifactory directory,
C:\maven_local_repo and C:\Users\myName.m2\respository but not sure
how they get created and what is the relationship among them.
C:\Users\myName.m2\respository is the "local repository". If you learned a bit about how maven works, it holds a local repo on the local machine, and it keeps there all artifacts. It downloads them from the "repository" - if you have one in your company (Nexus, Artifactory, etc) or from Maven Central. However, this path is configurable by Maven's settings. So there might be that someone played with it and changed the path, and these other directories were created. You did not mention what resides inside these paths...
4) Is it ok to remove current maven plugin from eclipse and re-install
it then check out the java project from SVN? I think my maven or maven
plugin settings are not correct in my local box.
Sure it is OK. You may remove the plugin, and the source plus maven itself will not be deleted from your machine.
HTH.
I'm new to maven and eclipse. I added m2e-plugin in eclipse and I imported an example of a maven project that I've found in the net.
My problem is when I try to run the project in eclipse using the Run as item menu, I don't find the maven package menu as I learned in the different tutorials.
Is it a problem of installation?
Ok, lets go through this step by step to make sure you have everything you need to get going.
First of all make sure that you have Maven installed (and lets assume you have Java already). You can download it from http://maven.apache.org/download.cgi and installation instructions for Fedora (which I assume is what you are using from your tag) are further down the page.
To test that Maven is correctly installed and working type mvn --help in to the terminal. Eclipse and m2e pretty much just hop on to the terminal for everything Maven related so make sure this is working before proceeding.
Next download an appropriate version of Eclipse. For the sake of this example I've downloaded the Kepler version of the Java EE IDE. In this version of Eclipse m2e comes bundled and to check this you can go to Help > About Eclipse > Installation Details and on the plug-ins tab you should see the m2e connectors.
Now you can import your Maven project in to Eclipse. To do this go to File > Import and then choose Existing Maven Projects under the Maven section. Choose the directory with the example project that you've downloaded and then Finish.
Now, ensure that you have some file inside your example Maven project opened and when you go to Run As... you should now be able to see the maven options. Go to Run As > Maven build... and all you need to do is place the word package in the Goals field and you're ready to roll.
Convert your project to a maven project if you haven't done yet by right clicking on your project in the Eclipse Project/Package explorer. Then follow:
Configure -> Convert to Maven Project
After that you can just right click again on the project Run as and you will see all Maven possibilities to execute your project build/install/clean etc.
I use the IntelliJ IDEA 12.1.4 under Windows and Linux (Ubuntu). The Maven plugin is installed.
I have a big maven project with many poms. Under Windows the IDEA creates artifacts automatically when I do reimport from maven. But under my Linux system the list of artifacts is empty always.
Is it a bug? How to generate artifacts in the Linux case?
Go to the Maven-Projects-View and click "package" for your aggregator project. IntelliJ will then run Maven which creates all artifacts in the target folder. If you run "install", these artifacts will be copied to the local repository. Maybe you didn't do that under Linux yet, so your repository is empty - under Windows, I suppose that IntelliJ was smart enough to refer to those artifacts while importing the project. I personally do not know of any feature in IntelliJ that would automatically package/install all projects on reimport - I'd consider this rather annyoing.