I was working with Eclipse 3.2.2 and vss 1.6.1.
Suddenly eclipse shut down and when I tried to restart it I got:

An internal error occurred during: "Removing share from project + ETSApplication".
Attempted to beginRule:R/, does not match outer scope rule:P/ETSApplication.
Projects are not shared any more and I cannot work since I get no properties for the project.

What can I do?