SQL Gateway, errors while building proxy classes

SQL gateway.

There is a basic problem with sql gateway,

while building the proxy methods, with:

d ##class(%Net.Remote.Gateway).%ExpressImport(class, port, host, 0, classObj)
it causes error messages as something in the class is not correct,

while this class passed OK all Visual Studio of C#

and same class working OK under the %Activate Assembly link

I think there is also problem  with overload methods (same methods names).

Regards,

Emanuel