Eclipse Luna 4.4.2 with Java JDK 1.7
I installed
Spring IDE plugin version 3.7.3
Pivotal Software Spring Tool Suite(STS 3.7.3)
plugins successfully, have no problem with switching to the Spring perspective and my File->new->projects has several spring related selections.
I have been building using maven with no problems. My maven version is 3.3.3. Checking the Help->Installation Details dialog shows eclipse m2e-workspace 0.3.1
When accessing the Eclipse Marketplace, the dialog shows Maven Integration for Eclipse(Luna and newer) 1.5 and the update button is greyed out and there is an uninstall button, so I have that installed.
When selecting Spring Starter Project, I get the creation dialog box with an error message at the top reading --
Can not import using Maven because Can not use Maven: M2E (Eclipse
Maven Tooling) is not installed
I have also lost my maven sub-menu when I right click on pom.xml. Its no longer there.
Any ideas on a solution before I start removing things/changing things and possibly making things worse? Explanations also welcome.
Thanks
When installing the Spring IDE plugin into Eclipse that already has the maven plugin installed results in a serious conflict as Spring IDE also installs maven. It may be resolvable, but I was unable to find a solution.
I did uninstall the Spring IDE, but the problem was not cleared on Eclipse restart. I deleted the corrupted eclipse installation, while keep its workspace intact.
I finally installed STS w/eclipse and pointed it at my previous workspace.
I had the same issue and I have no idea of how to fix that.
To turnaround the this problem, I downloaded the Spring Tool Suite™ by the url: http://spring.io/tools/sts/all
This Suite have all the tools to build any Spring project that you'll want.
Hope this work for you.
I am going to start with GeoTools. Maven in installed correctly as cmd prompt says the version 3.0.4. But in Netbeans 6.5, Maven Category does not appear to create a new project. What should I go through now?
Please follow the link i given..it is given correct explanation about NetBeans IDE and Maven Repositories
Maven Repositories in NetBean IDE
If your system has enough resource, consider upgrading Netbeans to latest version 7.2. It has inbuilt maven plugin or the blow link may help you.
How-to: Install Maven For Netbeans 6.5.x
I have imported maven project in STS, when I run update update project I receive:
"Updating Maven Project". Unsupported IClasspathEntry kind=4
Is there a workaround for this?
This issue has been fixed in m2e 1.5.0 which is available for Eclipse Kepler (4.3) and Luna (4.4)
Please see https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14
The problem is caused by the fact that STS (the Spring IDE/Eclipse), as well Eclipse and other Eclipse based IDE's, use the m2e(clipse) plugin but that eclipse:eclipse has been probably been run on the project. When m2e encounters a "var" .classpath entry, it throws this error.
The update sites are specified at the following url:
http://eclipse.org/m2e/m2e-downloads.html
If you can't use m2e 1.5.0 for any reason, then :
Disable the maven nature for the project (via the right-click menu)
Run mvn eclipse:clean (while your project is open in STS/eclipse). Depending on the timing, you might need to do a refresh or two on the project before re-enabling the maven nature. You should be able to see that your project has lost it's Maven nature. (The eclipse:clean goal just deletes the .project, .classpath and .settings/ files/directories. You can also just remove those files (again while the project is open) instead of running mvn eclipse:clean.)
Re-enable the maven nature.
(Most of the time, this can be done by right-clicking on the project in question in the package explorer pane, and then choosing 'Configure'-> 'Convert to Maven Project')
Right-click on your project, select Maven -> Remove Maven Nature.
Open you terminal, go to your project folder and do mvn eclipse:clean
Right click on your Project and select “Configure -> Convert into Maven Project”
Now you got “Unsupported IClasspathEntry kind=4 Eclipse Scala” disappear.
Sometimes, even re-importing the Maven project will not work. Updating the project correctly in eclipse is not a deterministic process.
The only 100% fail safe procedure I've found is:
Disable Maven Nature, run mvn eclipse:clean, restart, cross your fingers and Pray 3 times.
If this won't work, delete the project, run mvn eclipse:clean, re-import refresh, pray and use the force.
If this still doesn't work, restart Eclipse, or even better your computer. While waiting for the reboot, you can make a random donation to fix your Karma. Repeat step 2 and don't forget to pray and control your anger. Anger leads to hate. Hate leads to suffering.
Try all the other answers posted in this thread. You might need to try them all for 3 times at least before giving up.
Format your Computer, re-install Eclipse and Maven. No need to pray anymore, all gods hate you anyway
Delete your git project, burn the physical drive that stored the remote repository, and write your project from scratch.
Find a time machine, travel to the past and convince yourself to follow another, non-programming career or at least to avoid Java
Make sure that the version of the m2e(clipse) plugin that you're running is at least 1.1.0
Close maven project - right click "Close Project"
Manualy remove all classpathentry with kind="var" in .classpath file
Open project
or
Remove maven project
Manualy rmeove .classpath
4 Reimport project
Have you tried:
If you have import project into the eclipse 4, please delete it.
In maven consol, run: mvn eclipse:clean
In Eclipse 4: File -> Import -> Maven -> Existing Maven Projects
Seeing all other answers. I found for me a simpler way.
I just removed all lines in the .classpath (editing with eclipse) containing a var and used maven -> update project without an error.
This error is also thrown if the update command is used on a project instrumented for code coverage with Clover.
To resolve in this scenario:
Un-instrument the project folders you wish to update.
Run the maven update then instrument for code coverage again.
I tried Marco's steps but no luck. Instead if you just get the latest m2e plugin from the link he provides and one by one right click on each project -> Maven -> Update Dependencies the error still pops up but the issue is resolved. That is to say the warnings disappear in the Markers view. I encountered this issue after importing some projects into SpringSource Tool Suite (STS). When I returned to my Eclipse Juno installation the warnings were displaying. Seeing that I had m2e 1.1 already installed I tried Marco's steps to no avail. Getting the latest version fixed it however.
I couldn't get mvn eclipse:clean etc to work with Kepler.
However I changed creating and extending variables to just using external jars in my eclipse classpath. This was reflected in no var's in my .classpath.
This corrected the problem. I was able to do a Maven update.
This issue (https://bugs.eclipse.org/394042) is fixed in m2e 1.5.0 which is available for Eclipse Kepler and Luna from this p2 repo :
http://download.eclipse.org/technology/m2e/releases/1.5
If you also use m2e-wtp, you'll need to install m2e-wtp 1.1.0 as well :
http://download.eclipse.org/m2e-wtp/releases/luna/1.1
Upgrading from Kepler to Luna worked for me.
I had just added some components for Java 1.8 support. It seems that they where not as compatible as I would like or that I mixed the wrong ones. It really caused a lot of problems. Trying to update the system reported errors as they couldn't fulfill some dependencies. Maven upgrades didn't work. Tried a lot of things.
So, if there is no reason to avoid the upgrade just add the luna repository to avalilable software sites (Luna http://download.eclipse.org/releases/luna/ ) and "check for updates". It is better to have all the components with the same version and there are some nice new features.
I tried all the steps mentioned here and on similar questions but couldn't solve this problem. I could neither solve problem nor update my m2eclipse. So I installed Eclipse Luna and it solved my problem... though it mean that I had to spend about 45 min to configure all the environment in my workspace.
Try
mvn clean install eclipse:eclipse -Dwtpversion=2.0 command on DOS command prompt.
Suggesting you because , It worked for me!!
I'm using Eclipse 4.3.2 (Kepler) with M2E 1.4.x and felt over this problem several times!
In my case the "mvn eclipse:eclipse" command also generates Checkstyle, PMD and Findbugs configuration so "mvn eclipse:clean" does not help me because it drops all those config files again.
The best solution for me was to delete all ".classpath" files:
find . -name ".classpath" -delete
and import the project into eclipse afterwards.
Before importing the project, it should be converted into eclipse project
mvn eclipse: eclipse
Then i found the following error.
An internal error occurred during: "Importing Maven projects".Unsupported IClasspathEntry kind=4
Where is the value kind = "var" that M2E does not recognize and therefore throws the error.
Now type this.
mvn eclipse: clean
Now refresh the project in eclipse or re-import.
I am using (STS) springsource tools suite which is eclipse... with maven plugin...
this post:
Invoke "Maven Project Builder" in Eclipse on Run As -> Android Application (or manually)
suggests that there should be a maven builder in my project builders... now I cannot find it in the add menu ...
Any help is appreciated.
Thanks.
Turned out that the problem is that STS uses an old un-maintained version of the maven plugin... The new versions are supposed to have fixed that and moved to new versions...
I didn't try it yet, but that is supposed to solve it.
I have Eclipse Galileo (for Java EE Developers) installed, and I'm now trying to get the m2eclipse Maven plugin installed as well.
I follow the basic steps described at http://m2eclipse.sonatype.org/installing-m2eclipse.html, and it seems to be installing just fine. However, after restarting Eclipse after the install it doesn't seem to be anywhere. I should for instance have the ability to create a new maven project, but when the new-project wizard opens, there is no folder for Maven (I also cannot find any reference to it in the context menus of the existing projects I have).
When I click at Help > About Eclipse > Installation Details, I find "Maven Integration for Eclipse (Required)" in the tab "Installed Software", yet another thing pointing towards a successful installation (but I can't find it under the "Plug-ins" tab, should it be there too?)...
I feel like I'm just missing something very obvious, but right now I just don't see it...
I managed to find the answer to this myself:
I had put the Eclipse installation folder under c:\Program Files\, but when I moved it directly under c:\ instead, the plug-in installation worked just as it should. I assume that is because Eclipse wasn't allowed to write to its own installation folder (but I didn't get the usual question from Windows that something was trying to access Program Files either...).
In one way I feel like I should be a bit ashamed that I didn't think of this before. On the other hand though, there could have been some reasonable error message stating that something failed during the plug-in installation...
Well, I hope this at least helps somebody else as well :)
Did you check the m2eclipse installation requirements?
In particular, you need WTP.
"Maven integration for Eclipse" (core feature) and optional "Maven POM Editor" feature depend on the "Eclipse XML Editors and Tools" feature from WST
"Maven integration for WTP" feature provides Maven project configuration for WTP
Did you have a previous version of m2eclipse installed? Did you uninstall it before to install the latest version? Just in case, does the following note applies to you?
Note about 0.9.8 Workspace Incompatibility: If you are using
m2eclipse 0.10.0 with a workspace that
contains projects created under
m2eclipse 0.9.8, you must remove the
workspaceState.ser file. The
workspaceState.ser file is located
within the workspace directory in
$workspacedir/.metadata/.plugins/org.maven.ide.eclipse/workspaceState.ser.
If you remove this file, m2eclipse
0.10.0 will regenerate it as needed.
In my case, uninstalling the previous m2eclipse version didn't work and I had to start with a fresh Eclipse install (maybe try this also).
Regarding the plugin tab, this is what I have (to confirm that you should definitely find something):
alt text http://www.imagebanana.com/img/84h6mw8z/screenshot_008.png
Note that I also installed some extras from m2eclipse Extras Update Site: http://m2eclipse.sonatype.org/sites/m2e-extras
I was able to solve this problem by going into Program Files, right click on the eclipse.exe file and select "Run as administrator". When I restarted Eclipse it said I had no plugins installs so I reinstalled and my problems were solved.
PROBLEM SOLVED
I had this same problem and I used the following software site:
["M2Eclipse - http://download.eclipse.org/technology/m2e/releases/1.0] (without square brackets) to download the M2Eclipse plugin in Eclipse 3.7.0 (Indigo). For more information refer this.
To solve the problem of 'not getting Maven plugin running in eclipse' , it can be solved by altering admin rights to the .m2 folder . Right click on .m2 folder and go to network sharing. give all rights to all users. Restart eclipse and maven options will start to appear in Eclipse.