I am using Carbide.C++ to compile my Symbian Project and suddenly I got the following error Messages:
Error : cannot construct CTestClassSource base class MDataSource
Error : cannot construct CTestClassSink base class MDataSink
I am adding functionality to these classes (I was for instance mixing in MDevSoundObserver in CTestClassSink), but nothing which should affect MDataSource/Sink and it all compiled Ok before. I can not find any documentation about this error message, so does anyone know what it means or can tell me where it is documented?