Eclipse 3.4 Cache Problem

Due to a p2 bug in Eclipse 3.4, every time you uninstall or move a plugin or .link file you need to do the following to clear the Eclipse cache:

The best solution is to start with a fresh copy of Eclipse but if you don't want to do that, try the following:

1. Uninstall/delete plugin and .link files. The .link files are located in your eclipse\dropins directory. If you used the installer, the installation files, by default, are located under C:\Program Files\Instantiations. Alternatively, you can use the Windows Add/Remove programs utility to un-install. 

2. Restart Eclipse with the -clean option to clear the cache.

3. Open the bundles.info file in your Eclipse configuration\directory to verify that references to the old installations are gone. If for some reason, it's still there, you'll have to unzip a fresh copy of Eclipse.

4. Install plugin as usual and start Eclipse.

If that does not work try restoring the \eclipse\configuration and \eclipse\p2 directories from the original eclipse zip file.

If that still doesn't work, your best bet is to start with a fresh copy of Eclipse.