title: IIS7: Possible causes of 'Unrecognized configuration path' error
body: <p>After setting up an ASP.NET website in IIS7 I get an Internal Server Error (500.19) that says:<br>
  'Unrecognized configuration path'. </p>
  
  <p>What are possible causes of this error?</p>
  
  <p>(Setting up other ASP.NET websites works OK, but for a particular website it does not work and I cannot figure out the difference.)</p>
  
  <hr>
  
  <p>Detailed error description:</p>
  
  <blockquote>
    <p>Error Summary:<br>
    HTTP Error 500.19 - Internal Server Error<br>
    The requested page cannot be accessed because the related configuration data for the page is invalid.
    Detailed Error Information:<br>
    Module: IIS Web Core<br>
    Notification: BeginRequest<br>
    Handler: Not yet determined<br>
    Error Code: 0x80070002<br>
    Config Error: Unrecognized configuration path 'MACHINE/WEBROOT/APPHOST/...'<br>
    Config File:<br>
    Requested URL: <a href="http://...:80/" rel="noreferrer">http://...:80/</a><br>
    Physical Path:<br>
    Logon Method: Not yet determined<br>
    Logon User: Not yet determined<br>
    Config Source:<br>
    -1:<br>
    0: </p>
  </blockquote>