The job has been cancelled because of the failure of another job on which it depended. (ID 912)

Problem:

Using Microsoft Data Protection my SQL backups started failing.  The failed jon log said

The job has been cancelled because of the failure of another job on which it depended. (ID 912) 

Cause:

The SQL VSS writer enters a bad state.  To make sure this is your problem open an administrative command prompt and type the following:

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