Oracle® Database 11g / 12c / 18c error codes ORA-40281: invalid model name

ORA-40281: invalid model name

Oracle Error Code: ORA-40281

Cause: A model name is invalid or does not exist.

Action: Check spelling. A valid model name must begin with a letter and may contain only alphanumeric characters and the special characters $, _, and #. The name must be less than or equal to 30 characters and cannot be a reserved word.