TortoiseSVN ignore list is not working
svn, tortoisesvn, version-control
Solution
Recently I ran into same problem and I found an article on svn enhancements where someone mentioned that error message (file cannot be added to ignore list) is not user friendly as it does not give you more information on why the file could not be added to the ignore list.
The file I was trying to add to the ignore list was not stored under a versioned folder. And interestingly, SVN is expecting the file-to-be-ignored stored under a versioned folder.
I simply ignored the entire folder (bin & obj in my case) and Tortoise SVN happily accepted it.
Problem
Although I have told TortoiseSVN to ignore *.avi and *.exe files, when I commit, TortoiseSVN still wants to commit those files.