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jones j alapat
jones j alapat

Reputation: 979

plug-in org.eclipse.m2e.core.ui was unable to load class

I had made an maven project and it worked fine. Then I installed plugins EclEmma Java Code Coverage, PHP Development Tools (PDT), Eclipse.orgSonarQube

Then I worked on some other project. When I again wanted to create an maven project,it threw the following error window which said

The selected wizard could not be started
reason
plug-in org.eclipse.m2e.core.ui was unable to load class
org.eclipse.m2e.core.ui.internal wizards.MavenProjectWizard

Upvotes: 6

Views: 12136

Answers (5)

Andrew McKeown
Andrew McKeown

Reputation: 1

Actually, what you really need to do is remove m2e from your eclipse, shutdown and restart eclipse, and then add m2e back in.

Also you could install websphere from eclipse marketplace and that will fix it as well. There is absolutely no need to clear out .metedata as that is a really hard.

If installing websphere from eclipse marketplace use the highest version possible but not liberty unless you want that.

Upvotes: 0

KuoHamKun
KuoHamKun

Reputation: 66

I had the same problem, and I've tried so many solutions. But what I did to solve the problem, is that I just upgraded my Eclipse IDE (2019-06 to 2020-03) by following these steps (from https://wiki.eclipse.org/FAQ_How_do_I_upgrade_Eclipse_IDE%3F) :

  1. You first need to add the new release's repository as follows:
    1-1. Window > Preferences > Install/Update > Available Software Sites
    1-2. Click 'Add'
    1-3. Enter the URL https://download.eclipse.org/releases/2020-03/
    1-4. Click 'Ok'
    1. Help > Check for Updates
    2. If updates are found, proceed through the install wizard and restart the IDE when prompted. Otherwise, read carefully the error message to find out which component is conflicting and establish your resolution strategy.
    3. Note that the start splash screen may be cached and will not necessarily be updated to the latest version after the IDE is restarted. Performing a full relaunch should display the new version number.

Upvotes: 0

HariKishore K
HariKishore K

Reputation: 409

That's not quite the right characterization of what it says on the page,Please check your .log file /path/workspace/.metadata/

Find the correct plugin which is causing this problem and update to compatible version of the plugin with eclipse version. To find the hidden files in the workspace use Ctrl+H

Upvotes: 0

Bruce
Bruce

Reputation: 8849

Click on eclipse help tab and open installation details search sonar and remove all related plugins.

Upvotes: 1

jones j alapat
jones j alapat

Reputation: 979

Removed SonarQube plugin .This solved the issue. Now it works all fine. But is there any other solution to this problem since I have to use sonar.

Upvotes: 11

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