Creo3.0 OTK C++ Environment Setup with vs2012

Hello everyone,

I tried to set the OTK developed environment in vs2012. I followed the document "OTK_Cxx_GSG.pdf" to test  PTC Creo Object TOOLKIT C++ Installation by using "otk_install.sln" and it did work. However, when I tried to build a new application, which is also followed the document, there was some error,

"\otk\otk_cpp\include\cipplatform.h(79): fatal error C1189: #error : "Either PLATFORM or PRO_MACHINE must be defined"".

Does anyone know how to deal with this situation?