Could not load file or assembly ‘SboMetadataSvcModel….’ or one of its dependencies

Symptom

At task run time, the step fails with the error:

Error occurred: Could not load file or assembly 'SboMetadataSvcModel, Version=1.0.34.0, Culture=neutral, 
PublicKeyToken=2a74e7488c2054c1' or one of its dependencies. The system cannot find the file specified.

Cause

The error is caused by missing operation Metadata.

Solution

To resolve the issue, open the step and reselect the operation and click OK to save the change. This will refresh the operation Metadata.