title: Getting "CHECKOUT can only be performed on a version resource" when trying to commit using Eclipse subversive plugin
body: <p>I'm using Eclipse Juno on Mac 10.7.5, SVN 1.7 and the Eclipse Subversive plugin.  Occassioanlly, when I try and commit changes from my project (by right clicking on the project from the package explorer, selecting "Team" -> "Commit"), I get the error:</p>
  
  <pre><code>Some of selected resources were not committed.
  Some of selected resources were not committed.
  svn: E200007: Commit failed (details follow):
  
  svn: E200007: Commit failed (details follow):
  svn: E200007: CHECKOUT can only be performed on a version resource [at this time].
  svn: E175002: CHECKOUT request failed on '/svn/subco-digital.coderepo/!svn/rvr/2110/trunk/myproject/src/main/java/org/mainco/subco/myproject/validator/UserFormValidator.java'
  </code></pre>
  
  <p>I have verified that I have checked out the latest version of my project.  How can I take care of these repeated errors?  </p>