Oracle Solution for Error ora-19563

ORA-19563: string header validation failed for file string

What triggered the Error:

en opening the file to be placed in a copy or backup set, to be inspected, or used as the target for an incremental restore, its header was not recognized as a valid file header for a file of the indicated type (datafile, archived log, or control file) belonging to the current database.

What should we do to fix it:

sure that the correct files are being specified for the copy or backup operation.