Thanks your suggestion solved the problem. First I removed the semicolon (;) after &cpstream and I added the following code:

#define FKG_FORCED_USAGE 1
#include <sphelper.h>
#undef FKG_FORCED_USAGE

After this I added

CoInitializeEx(nullptr, COINIT_MULTITHREADED);

to the beginning of main. Now my solution compiles and produces a wav file.