If a join is needed, create multiple simple snapshots, and then create a view on top of the multiple snapshots. The query that instantiates the snapshot does not include all of the columns in the master's primary key constraint. The refresh operations for the indicated snapshot could not be regenerated due to errors. See following error text. Correct the indicated problem and repeat the operation.
Nothing needs to be done.
Contact your customer support representative. No action required. The snapshot is corrupted. Drop and recreate the snapshot. No action required.