Eclipse not Starting

Question

I was using Ubuntu 11.04 & my Eclipse was working fine . I was using Eclipse Juno but now i have upgraded my ubuntu from 11.04 to 11.10 but my Eclipse is not even starting now .

Answer 1

As in this thread, try moving your existing eclipse.ini, and let Eclipse recreate it.
See if that allows Eclipse to start.

sudo mv /usr/lib/eclipse/eclipse.ini /usr/lib/eclipse/eclipse.ini.bup

If not, then a copy of the error message or of the eclipse logs (workspaceLocation/.metadata/.log) will help.

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Regarding the launcher with an improper icon ('?'), you can also follow this thread

Leave the "Type" as "Application" and click "Browse" next to "Command". Navigate to your Eclipse installation and binary e.g. /opt/eclipse/eclipse.

Now click the springy icon and change the icon to the eclipse.xpm file in the same folder as your binary.

Click OK then move the icon somewhere out of the way e.g. ~/.local/applications.

Once you have done that, just drag that icon over to your launcher.