title: Tortoise SVN log "URL .. doesn't exist"
body: <p>I'm using Windows 7 Professional and Tortoise SVN 1.9.4.</p>
  
  <p>So I right click on a directory under SVN control and choose <code>Show SVN Log</code>. Multiple revisions are shown. I select multiple contiguous revisions, none of these rename or move any file or directory. The third area of the log window shows me the files affected by the selected range. I double-click on a file to view the differences. Instead of seeing differences I instead see a popup error:</p>
  
  <p>"Subversion reported an error. URL ...://svnrepository.MYDOMAIN.com/svn/X/Y/trunk/somefile.txt doesn't exist"</p>
  
  <p>What can cause this?</p>