Oracle Solution for Error ora-23407

ORA-23407: object name string must be shaped like "schema"."object" or "object"

What triggered the Error:

e object name (e.g., the rollback segment, the materialized view name, the refresh group) was incorrectly specified.

What should we do to fix it:

try the operation with the object name properly specified (like "schema"."object" or "object")