Failed to create availability group '%1!s!', because a Windows Server Failover Cluster (WSFC) group with the specified name ...

Failed to create availability group '%1!s!', because a Windows Server Failover Cluster (WSFC) group with the specified name already exists.  The operation has been rolled back successfully.  To retry creating an availability group, either remove or rename the existing WSFC group, or retry the operation specifying a different availability group name.