opencv_gpu compilation problem

I use to generate a vs solution file. When I try to the project, the opencv_gpu project gives following error:

error C3861: '': identifier not found

error C3861: 'nppiCanny_32f8u_C1R': ident开发者_StackOverflow中文版ifier not found

error C2664: 'nppiSum_8u_C1R' : cannot convert parameter 4 from 'Npp32s *' to 'Npp8u *'

error C2664: 'nppiSum_8u_C4R' : cannot convert parameter 4 from 'Npp32s *' to 'Npp8u *'

I am using NPP3.2. Other projects seem fine. Thank you.

There's a discussion about this error here:

http://blog.cuvilib.com/2011/03/22/how-to-build-opencv-2-2-with-gpu-cuda-on-windows-7/

Apparently some of the users solved it.