How do I tell Netbeans to use SVN instead of Mercurial?

I've been committing files to my SVN reposi开发者_如何学Ctory for months, but suddenly for some reason, the SVN Commit option is grayed out or missing everywhere. I'm using Netbeans 6.8 and I'd like it to restore the sync'ing with my SVN repository (Unfuddle.com).

1) In the Project window, the blue and green filename highlighting is completely wrong. I think it is based on the Mercurial repository that I once used. But I can't seem to turn off Mercurial.

2) When I go to "Team->Subversion", "Commit" is grayed out. Only "Checkout", "Apply Diff Patch", "Merge To", and "Copy To" are available options.

3) When I right click on the filename in the Project window, I used to get a "Subversion" menu, but that's no longer there.

4) Upgrading to Netbeans 6.9 did not help

Thanks.

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Likely caused by missing .svn folders. Performing an SVN cleanup should regenerate them. Restart Netbeans afterwards and the problem should be fixed.