VMDB Transport error is caused when there are issues with VMWare Virtual Machine Disk. The VMDB file stores information related to the configuration of your VM. One of the reasons for the same is a corrupted VMDB file. However, the most common error for the same is a bug or glitch in the VMWare Software. If the reason for the issue is the former, there are some hard decisions we need to take. In case, you are getting the error message due to a bug, it can be resolved without deleting the VM.