vmware, Failed to lock the file! VMWare virtual disk (vmdk)

Failed to lock the file! VMWare virtual disk (vmdk)

I copied one of my Windows XP virtual machine running on a VMWare Server 1.02 host locally to my workstation. After the files were copied I opened the vmx file with VMWare Workstation 6 and received the error below after trying to start the virtual machine. I made one snapshot on the VMWare Server host.

Cannot open the disk ‘C:\VM-machines\Windows XP-001\Windows XP Professional-000001.vmdk’ or one of the snapshot disks it depends on. Reason: Failed to lock the file.

Locate the virtual machine in Windows Explorer and delete any .lck folders

Start the virtual machine. If this fails try to Map the virtual hard disk to Z:\

I than disconnect the virtual hard disk and retried. The virtual machine boot without any problem; my snapshot was valid.