SOZCM0001 Internal file mappings error. The file mapping {0} was not found in the index.

The given file mapping could not be found in the internal file mapping cache.

User Response:
If the file mapping is missing in the File Mappings view, add it and retry the action. Verify that the file_mapping.xml file exists in the internal project folder in the user's workspace. Restart Eclipse to see if the file mapping is restored from the local cache.