Error v2v a server using Vmware Converter FAILED: Unable to create a VSS snapshot of the source volume(s). Error code: 109 (0x0000006D)

I have the above when trying to v2v a server to either an ESXi Server or as a Workstation to a HDD.  I have plenty of space on the drive being cloned to, has anyone else had this before, can you please provide a resolution?#

Thanks

Chris