Seaquel
SQL Server error code

SQL Server error 6974

SQL Server raises error 6974 at severity 16, which marks a problem with the query or data that you can correct.

Invalid redefinition of attribute '%s' in type '%s'. Must be prohibited in the derived type if it is prohibited in the base type.
Msg6974
Severity16
Group6000–6999

Source: Database Engine events and errors