TFS 2017 Error: TF401054
问题 I've the following issue: I've set up a new TFS2017 with new databases. Now I remapped the TFS2017 to our old TFS2015 databases as described here. When I now try to connect to the TFS2017 in my webbrowser I get the following error: TF401054: The requested service level property TFS_SERVICE_LEVEL did not match the expected value. Team Foundation Server requires the Dev15.M105.5 service level but the database currently implements Dev14.M102. Is there a way to manualy upgrade the TFS2015