TF261014: Team Foundation Server could not contact the SCVMM server specified by the migrated team project collection. The ...

TF261014: Team Foundation Server could not contact the SCVMM server specified by the migrated team project collection. The following SCVMM server is currently unavailable: {0}. Confirm that the TFS Service Account is a member of the SCVMM Administrator user role. Wait several minutes, and then try the attach operation again. Alternatively, you can delete the obsolete lab objects on Team Foundation Server using the command 'TfsConfig lab /collectionName:mycollection /delete /noprompt'.