One of the most common errors encountered when attempting to import x86 and virtual appliances into Skytap is "Your hardware version can’t be downgraded".
This error occurs when a VM is exported from the source hypervisor with an unsupported hardware version.
If the VM is set to a higher hardware version than what is currently supported, you must downgrade it outside of Skytap before it can be imported.
Preparing x86 VMs and vApps for import: https://help.skytap.com/importing-vms-preparing-vms-for-import.html
Resolving import errors: https://help.skytap.com/imports-errors.html
Downgrading VM hardware version using VMware Fusion: https://www.youtube.com/watch?v=wK1yubTy7OQ
Downgrading VM hardware version using VMware Workstation: https://www.youtube.com/watch?v=YD8s_WikxlU