TL;DR; Explains how to resolve the TF250052 error in TFS 2012 after reinstalling SharePoint 2010 by refreshing the access rights list to display existing entries.
If for some reason you need to re-install SharePoint 2010 as part of your TFS deployment you may get a “TF250052: Grant access rights already exists for the following Team Foundation Server URL: http://tfs01:8080/tfs . You should modify the existing access” but you don’t see anything in the existing list!
Figure: Um… where is the existing item and why the TF250052?
Although it is not displayed the previous listing is still there. If you click “Refresh” at the top of the window it will magically appear..
Just click “OK” and then “Cancel”. Your display will then refresh with the entry listed! Phew..
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