SVN not working in Eclipse

Question

One day I pressed in Eclipse Help -> Check for Updates (and I learnt that I should Never Ever update a software which works fine.)

Then in

Answer 1

Even if you install everything as it is said, Subversive and SVN Connector (svnkit 1.x.x), in the project you may not see svn working. In my case I had to remove the project from workspace and import it again. Then it appears. (Refresh, clean did not worked).