An invalid modifier and format item combination was encountered.
#3031 Compile-time error or run-time catchable error
An invalid modifier and format item combination was encountered.
Additional Information
The modifier 'X' cannot be used with the format item 'Y'.
Recovery
Compilation continues but no compiled source code file will be saved.
Explanation
Most format items have modifiers which can be applied to them. In
this case, a modifier which does not apply has been used.