Oracle Solution for Error ora-19812

ORA-19812: cannot use string without DB_RECOVERY_FILE_DEST

What triggered the Error:

ere are three possible cause for this error: 1) The indicated parameter was in use when no DB_RECOVERY_FILE_DEST parameter was encountered while fetching the initialization parameter. 2) An attempt was made to set indicated the parameter with the ALTER SYSTEM command when no DB_RECOVERY_FILE_DEST was in use. 3) An attempt was made to clear DB_RECOVERY_FILE_DEST with the ALTER SYSTEM command when the indicated parameter was in use.

What should we do to fix it:

iminate any incompatible parameter definitions.