Eclipse won't start, log error says: ObjectNotFoundException: Tree element

Question

Last night my machine restarted while Eclipse Galileo was open. No big deal, right?

This morning, I started my machine and tried to open Eclipse. Instead of openin

Answer 1

Ran into this error.

There was no .snap file in my .metadata folder.

I had to delete this:

/.metadata/.plugins/org.eclipse.core.resources/.root/d+.tree

d+=> some number.

Then I had to re-import the projects and re-assign the working sets. I preferred it over opening a new workspace and redoing settings.