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

TF261014: Team Foundation Server could not contact the designated SCVMM server specified by the migrated team project collection; the following SCVMM server is currently unavailable: {0}. Wait several minutes, and then try the attach operation again or you can start afresh by cleaning up the lab objects on your team foundation server using 'Tfsconfig lab /collectionName:mycollection /delete /noprompt'.