I am running Eclipse 3.5.2 on Ubuntu 10.04. I tried installing the EGit plugin for Eclipse, and after restarting Eclipse, I found that all my other plugins had effectively disappeared (Subclipse, PyDev, OpenExtern, Colorer, etc.). Oddly enough, Eclispe does not list anything as disabled, and running Eclipse from the command line does not show any errors.
I immediately uninstalled EGit and tried to uninstall and then reinstall some of my other plugins, but I cannot get anything to work. The Eclipse software dialog box showed them all as installed, and I can at least see PyDev listed in the Open Perspective dialog box, but when I try to start PyDev nothing happens and no errors are visible. I also tried the Eclipse update wizard to install all pending updates for the components, but this did not have a noticeable effect.
I am completely lost, especially since I do not receive any messages that would indicate a problem. What happened here? How to fix Eclipse plugins?
EDIT: The problem seems to be similar to this post . I see dozens of errors like
Could not instantiate provider org.tigris.subversion.subclipse.core.svnnature for project X
in my ~ / workspace / .metadata / .log
Unfortunately, the proposed solution somehow using the Equinox p2 installer does not work for me.
EDIT: I tried to delete the ~ / .eclipse folder and reinstall my plugins, but the problem persists.
EDIT: I tried again to delete the ~ / .eclipse folder, the ~ / workspace / .metadata folder, uninstalling all the Eclipse Ubuntu packages (including configuration data) and then reinstalling, but the plugins are still not showing ..
EDIT: Some other strange things may have happened. I'm not sure what caused this, but at some point my entire file system became “readonly” and many processes started crashing when they could not modify their db files (like Firefox). After the reboot, everything seemed to solve itself, and I was able to download and install Eclipse 3.7, which supposedly does not suffer from this error .