Oracle Solution for Error ora-16433

ORA-16433: The database has not been opened in read-write mode

What triggered the Error:

When a physical standby database is converted to a read-write database or there was a failed open resetlogs attempt, the database should be opened in read-write mode to have correct file access information in the controlfile.

What should we do to fix it:

Open the database in read-write mode and reissue the command.