SVN tab is missing from eclipse project properties for existing SVN projects after svn plugin/connector crashed.

1st, removed all related SVN plugins and connectors.

Then reinstall again SVN plugins & connectors.

But existing SVN projects won't appear to have SVN enabled.

http://stackoverflow.com/questions/166220/restore-eclipse-subversion-project-connection

Edit: is not applicable to Neon.2.


Trying for mars and successful:
https://docs.google.com/document/d/12Fh-NqSj4-shRVtlVwvjEOqiqMwlsvvfOGh1WpC_U2s/edit?usp=sharing