OnPreRender: Could not Expand Web as Admin. Empty web/site guid

Jul 13, 2010 at 6:23 PM

I've installed AccessCheckerWebPart using the tool, and also manually using stsadm, and I'm getting the following error:

OnPreRender: Could not Expand Web as Admin. Empty web/site guid

This comes up immediately for 'View Permission Inheritance',  and 'Check User Access' after selecting a user

I have admin rights for the sites, running Windows Sharepoint Services v3