Altaro Technical Support Center

[VMware] Error: "Value cannot be null. Parameter name: path1"

Modified on: Wed, 24 Apr, 2019 at 5:20 PM

PROBLEM

You get the following error when backing up a VMware Virtual Machine:

This error is encountered when a disk (VMDK) does not have a UUID assigned.

A fix for this is documented on the VMware Knowledge Base.