Backup fails with: "API Call failed: Cannot create a quiesced snapshot because..." (4046550)

vRanger job fails with this error:

API Call failed..: Cannot create a quiesced snapshot because the (user-supplied) custom prefreeze script in the virtual machine exited with a nonzero return code.

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1. Try taking a Manual snapshot on the VM by Right-clicking on the VM and selecting “Snapshot\Take Snapshot”. Name the Snapshot “test”, uncheck “Shapshot VM’s Memory”, and Check “ Quiesce Guest File System”. If there is an error, please continue down troubleshooting steps within this list.
2. Make sure the scripts in the following locations are working correctly on the VM:

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1. Restart the VMtools services and try taking another Snapshot like in Step 1. If it succeeds, try your job in vRanger again.
2. If that fails with same error the try uninstalling\reinstalling VMtools on the VM. Then try taking another snapshot like on step 1.
3. If that fails, then migrate the machine to another host and take a snapshot like step 1 again. If that successes move the VM back to the original host and attempt another snapshot like in step 1. If it succeeds, try your job in vRanger again.
4. If the snapshot still fails on the original Host then restart the Management services on the host by following this VMware KB. http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003490
5. Try taking another snapshot on this VM like in step 1. If it succeed try running your vRanger job again.
6. If the snapshot still fails then please contact VMware support as there is a deeper issue with the VM.

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Some information used from VMware KB: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006671