can't start vm in rhev-m

Solution Verified - Updated -

Issue

  • while attempting to start 2 rhel6 vm's, getting "Operation Canceled. Error while executing action: VMNAME:

    Cannot run VM. The Custom Compatibility Version of VM VMNAME (3.6) is not supported in Data Center compatibility version 4.0.

Environment

  • Red Hat Virtualization 4.1

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