VMWare | Cannot open the disk ‘xxxxx.vmdk’ or one of the snapshot disks it depends on.


VMWare Version 5.0.0 build-812388

Situation:
Failed to power on a VM after recover from power outage. The VM was working fine before the power outage.

Error:
Failed to lock file.  Cannot open the disk ‘xxxxx.vmdk’ or one of the snapshot disks it depends on.

How I solve:
1. Delete 2 folder with .lck in the name from the virtual machine folder.
2. Power on the VM.

Source