Oracle Message ORA-19930 - file string has invalid checkpoint SCN string

ERRORfile string has invalid checkpoint SCN string
CAUSEWhen opening the file to be placed in a copy or backup set, to be inspected, the file header was not recognized as a valid header because it contained a invalid checkpoint SCN. The indicated file cannot be processed.
ACTIONEnsure that the correct files are being specified for the catalog or backup operation.