Error 10 error LNK2001: unresolved external symbol "public: virtual void __thiscall MPPostProcess::prepareForProcess(void)" (?prepareForProcess@MPPostProcess@@UAEXXZ) D:\Prj\MagicLib\MagicLib\dllmain.obj MagicLib
Error 11 error LNK2001: unresolved external symbol "public: virtual void __thiscall MPPostProcess::prepareForProcess(void)" (?prepareForProcess@MPPostProcess@@UAEXXZ) D:\Prj\MagicLib\MagicLib\MPImageData.obj MagicLib
Error 12 error LNK2019: unresolved external symbol "private: virtual __thiscall PPBlackAndWhite::~PPBlackAndWhite(void)" (??1PPBlackAndWhite@@EAE@XZ) referenced in function "private: virtual void * __thiscall PPBlackAndWhite::`scalar deleting destructor'(unsigned int)" (??_GPPBlackAndWhite@@EAEPAXI@Z) D:\Prj\MagicLib\MagicLib\dllmain.obj MagicLib
Как это вылечить?