Oracle Error ORA-27455: Only “SYS” is a valid schema for a string.

Oracle Error Message

ORA-27455: Only “SYS” is a valid schema for a string.

Reason for the Error

A non-SYS schema was specified for an object that must be in the SYS schema.

Solution

Reissue the command, leaving out the schema name or using the schema name of SYS.