Unresolved external symbols in beginners CUDA program

I create a new Win32 Console App as an empty project I am running Windows 7 64bit with Visual Studio 2008 C++. I am trying to get the sample code from the bottom of this article to build: http://www.ddj.com/architect/207200659 I add CUDA Build Rule v2.3.0 to the project's custom build rules. It is the only thing with a checkbox in the available rule files list I create moveArrays.cu in the Source Files (folder/filter???) In that file I add the following code: ``` // moveArrays.cu // // demonstrates CUDA interface to data allocation on device (GPU) // and data movement between host (CPU) and device. #include <stdio.h> #include <assert.h> #include <cuda.h> int main(void) { float *a_h, *b_h; // pointers to host memory float *a_d, *b_d; // pointers to device memory int N = 14; int i; // allocate arrays on host a_h = (float *)malloc(sizeof(float)*N); b_h = (float *)malloc(sizeof(float)*N); // allocate arrays on device cudaMalloc((void **) &a_d, sizeof(float)*N); cudaMalloc((void **) &b_d, sizeof(float)*N); // initialize host data for (i=0; i<N; i++) { a_h[i] = 10.f+i; b_h[i] = 0.f; } // send data from host to device: a_h to a_d cudaMemcpy(a_d, a_h, sizeof(float)*N, cudaMemcpyHostToDevice); // copy data within device: a_d to b_d cudaMemcpy(b_d, a_d, sizeof(float)*N, cudaMemcpyDeviceToDevice); // retrieve data from device: b_d to b_h cudaMemcpy(b_h, b_d, sizeof(float)*N, cudaMemcpyDeviceToHost); // check result for (i=0; i<N; i++) assert(a_h[i] == b_h[i]); // cleanup free(a_h); free(b_h); cudaFree(a_d); cudaFree(b_d); } ``` When I build I get these errors: ``` 1>------ Build started: Project: CUDASandbox, Configuration: Debug x64 ------ 1>Linking... 1>moveArrays.cu.obj : error LNK2019: unresolved external symbol cudaFree referenced in function main 1>moveArrays.cu.obj : error LNK2019: unresolved external symbol cudaMemcpy referenced in function main 1>moveArrays.cu.obj : error LNK2019: unresolved external symbol cudaMalloc referenced in function main 1>moveArrays.cu.obj : error LNK2019: unresolved external symbol __cudaUnregisterFatBinary referenced in function __cudaUnregisterBinaryUtil 1>moveArrays.cu.obj : error LNK2019: unresolved external symbol __cudaRegisterFatBinary referenced in function __sti____cudaRegisterAll_45_tmpxft_00001264_00000000_6_moveArrays_cpp1_ii_main 1>D:\Stuff\Programming\Visual Studio 2008\Projects\CUDASandbox\x64\Debug\CUDASandbox.exe : fatal error LNK1120: 5 unresolved externals 1>Build log was saved at "file://d:\Stuff\Programming\Visual Studio 2008\Projects\CUDASandbox\CUDASandbox\x64\Debug\BuildLog.htm" 1>CUDASandbox - 6 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== ``` I can compile and run the example CUDA programs that came with the SDK. I know I am missing something simple here, but what is it?