Add Project Collection Administrators to a TFS project that is missing the permission definition

gistfile1.txt

1) Grab the Guid of the project in question.  I did through through VS 2010 and clicking the properties of the project itself.

2) Grab the SSID of the project Collection Administrators. (You might be able to skip this step, I just couldn't get the syntax right in TFSSecurity to use it by name).

tfssecurity /i "Project Collection Administrators" /collection:<collectionPath>

output:  

SID: S-1-**********

DN:

Identity type: Team Foundation Server application group
   Group type: AdministrativeApplicationGroup
Project scope: Server scope
 Display name: [ProjectCollection]\Project Collection Administrators
  Description: Members of this application group can perform all privileged oper
ations on the Team Project Collection.

Now run the following command:

tfssecurity /a+ Identity vstfs:///Classification/TeamProject/<ProjectGUID> ManageMembership SID:<SID> ALLOW /collection:<CollectionPath>