I inherited a TFS 2010 server and I am attempting to use the Administration Console to perform some tasks (add a new project collection, add a console user, etc.) and it giv
For me, the solution (TFS 2018 Update 2) was to run the command line as the service account defined in the app tier. Then, I needed the DBA to grant the svc account the sysadmin server role temporarily during the project collection reattach. Once the attach was complete, I reapplied the service account in the app tier and it all worked perfectly.