I was able to successfully add the Hyper-V cluster in SCVMM to vCAC, but when it tries to gather information about the VMs on the cluster it gives this error:
Failed to collect data on host XXXX for virtual machine XXXX, Exception:Method not found: 'Byte Microsoft.SystemCenter.VirtualMachineManager.VirtualDiskDrive.get_LUN()'.. Try to refresh the host and the virtual machine in SCVMM Console.
As a result, none of the VMs are showing up in vCAC even though the cluster shows up with no problem in Compute Resources. Any idea on the cause of this? Any way to fix it?