Unknown Literal Typename {0} found in VOTypeNameExpression
In the VO and Vulcan language you can use type names a literal values, for example in an expression like:
IF UsualType(uExpr) == LONG
..
ENDIF
If you see error 9028 then you have a literal typename in an expression that is not properly handled by the compiler. If you see this error, then please submit a code example to bugreports@xsharp.eu