I'm trying to create plug-in algorithm using tutorial from Max Chickering and Raman Iyer. I follow steps very carefully and as far as I know my code is exactly the same as Completed shell solution in source files of tutorial. But when I try to compile factory.cpp file I get this error:
ErrorÃÂ ÃÂ ÃÂ 1ÃÂ ÃÂ ÃÂ error C2259: 'ATL::CComObject<Base>' : cannot instantiate abstract classÃÂ ÃÂ ÃÂ e:\development\ms visual studio 2005\vc\atlmfc\include\atlcom.hÃÂ ÃÂ ÃÂ 1799ÃÂ ÃÂ
When I compile completed shell solution from source files it's OK. Do you have any ideas, where the problem could be?
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