TF261007 error message when attaching a collection
Whist moving Team Project Collections (TPC) from our old TFS2010 Beta/RC server to new production hardware I got a TF261007, exactly as detailed in Marcel de Vries post. However, I was in the better position than he was as I still had full access to my original server, so I thought I could go back, re-attached the TPC on the old server, run the command
tfsconfig lab /delete /collectionName:MyCollection /External
re-detach and all would be OK.
This was not the case, you still get the same problem as TF261007. It seems that if you have a TPC what has ever been on a TFS 2010 RC server with Lab Management configured then it can only be moved to a new server that also has Lab management configured, or at least SCOM VMM console installed and pointed at VMM Host.
I checked this with Microsoft and was told it is a known issue with the Lab Management RC and will be fixed in the RTM, for now there is no other workaround other than the one Marcel detailed.
Read the complete post at http://blogs.blackmarble.co.uk/blogs/rfennell/archive/2010/06/03/tf261007-error-message-when-attaching-a-collection.aspx