An internal error occurred during “Initializing Java Tooling.” in Eclipse on startup

Question

I am getting this strange error on startup. What could be wrong in my environment?

Here is

Answer 1

Do not delete all the full .metadata

• Backup .metadata
• delete only .metadata/.plugins/org.eclipse.core.resources/.project
• restart eclipse

Observation : the projects folders are created

Further - if you are using svn/git/hg have code repository links it would be destroyed, so to reinstate

• close eclipse
• copy relevant projects from backup to merge with current projects in .metadata/.plugins/org.eclipse.core.resources/.project
• restart eclipse

Downfall - sporadic fail error may occur (sync or something) - harmless

Answer 2

Deleting only .metadata/.plugins/org.eclipse.core.resources/.project really helped me with my problem, that was just the same about Initializing Java Tool. Who have this problem should try this solution.

Answer 3

OSX Eclipse Luna was hanging for me at the 30% mark of Initializing Java Tool. After a number of startups and force quit cycles I started eclipse from the command line:

/usr/local/eclipse-luna/eclipse --clean

Then closed eclipse and restarted from the taskbar and all OK This resolved the problem for me

Answer 4

The answer from "raj" is ok, thank you men! it is correct.

In addition to his solution i have to comment. Please save a copy of your .metadata

Take care when you delete the folder: .metadata/.plugins/org.eclipse.core.resources/.project

There is some folder called "RemoteSystemsTempFiles" and now you won't see the trouble when you start eclipse but you will other error when you close eclipse, because the folder "RemoteSystemsTempFiles" doesn't exist into .projects

So you will ned to copy your .metadataCOPIA/.plugins/org.eclipse.core.resources/.project/RemoteSystemsTempFiles to .metadata/.plugins/org.eclipse.core.resources/.project/RemoteSystemsTempFiles

So, the quick fix to the error "“Initializing Java Tooling.” in Eclipse on startup" for me is:

1- Copy the folder ".metadata" of your workspace in a copy. 2- Delete the folder ".metadata/.plugins/org.eclipse.core.resources/.project" 3- Close eclipse > You will get an error on closing eclipse. 4- Copy the folder .metadataCOPIA/.plugins/org.eclipse.core.resources/.project/RemoteSystemsTempFiles to .metadata/.plugins/org.eclipse.core.resources/.project/RemoteSystemsTempFiles 5- Star Eclipse and all is ok.

Regards,

Answer 5

Old question, but I still get this error in Luna. A safe way to clear out the .projects folder is through the UI by deleting all projects without deleting from disk then importing them back into the workspace.

Answer 6

If cleaning .metadata folder doesn't work for you there's another solution you might want to try. "Just close the eclipse and open it again". That worked for my eclipse-mars running on Windows 7 64 bit OS. I believe it will work for Android projects too which runs in eclipse environment.