Cause: The snapshot control file was found to be nonexistent, corrupt,
or unreadable during an invocation of cfileUseSnapshot.
Action: Call cfileMakeAndUseSnapshot again (or for the first time).
Cause: The snapshot control file was found to be nonexistent, corrupt,
or unreadable during an invocation of cfileUseSnapshot.
Action: Call cfileMakeAndUseSnapshot again (or for the first time).