SAP Message CACSIB_EDT201 - Error while positioning pointer in file &1

Diagnosis
The program is attempting to position the pointer in file &v1&. Howeverthis is not possible for the following reason: &v2&.

System Response
The file operation terminated with an exception. the current programcannot be executed on account of this exception and it terminated withan error.

Procedure for System Administration
Either there is an error in the file system or the system cannot accessthe file system.
Check whether file &v1& exists and can be read.