Oracle Solution for Error ora-19905

ORA-19905: log_archive_format must contain %s, %t and %r

What triggered the Error:

g_archive_format is missing a mandatory format element. Starting with Oracle 10i, archived log file names must contain each of the elements %s(sequence), %t(thread), and %r(RESETLOGS ID) to ensure that all archived log file names are unique.

What should we do to fix it:

d the missing format elements to log_archive_format.