Oracle Solution for Error ora-19930

ORA-19930: file string has invalid checkpoint SCN string

What triggered the Error:

en 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.

What should we do to fix it:

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