DFS258 UNABLE TO LOCATE MESSAGE DESCRIPTION-INPUT IGNORED

Explanation
 Either an I/O error occurred while attempting
to fetch the message input descriptor block or the device input format
block, or the blocks were not in the active format data set, or the
block fetched was not a message input descriptor block.

System action
 The input data was ignored.

Operator response
Clear the screen, and enter a /FORMAT command.
Contact your IMS system programmer for assistance.

Module
DFSCFEI0 