title: SVN Error - 501 Not Implemented Commit Failed
body: <p>I have a folder in a repository that cannot commit and even parent folders cannot commit. This happened several weeks ago, then worked, then on the blink again. I have cleared my authentication cache and no help. I can still work with other trunks but not this one and the error message does not help me where to go. I have done Clean Up. I have created a new directory from VisualSVN from the repository and same problem. Would you have any suggestions? Can I nuke the .svn folder and help? I don't want to start with a new repo because we have TeamCity integrated and watching. Help and thanks in advance! 
  Doug </p>
  
  <p>**Error: Commit failed (details follow):</p>
  
  <p>Error: Server sent unexpected return value (501 Not Implemented) in response to</p>
  
  <p>Error: PROPFIND request for '/svn/MAHCP/trunk/src/RssaSolution/Mahcp.Rssa'**</p>
  
  <p>I posted to SVNForum as well but has anyone else had this crazy situation!</p>