This is an old revision of the document!
All the commands below are run from SmartSVN.
You tried to remove a file from svn and commit is not possible.
Check if you did SVN Remove on the directory in the Files lateral panel. If so, the SVN Commit must also be done directly on the directory (and not at the file level).
May happen when a local remove has been processed and someone else removed / commited the file on svn.
Select file and choose Mark resolved, option 1 (not 'accept incoming delete')
Revert will cancel your local action (remove, delete, move…) and may solve the problem.
Revert will cancel your local removing order and accept the commited modification by the other user, the file will become Unchanged locally.