Thread: LNK error message

Hello,

I am trying to get a C++ program call a Prolog program (in VS2008 IDE).

To make all the Prolog header files available to VS2008, I have copied all the include files onto my VC include folder, such as SWI_Prolog.h, SWI-cpp.h, plterm.h, etc.

However, when I build and compile my program, I get this error:

error LNK2019: unresolved external symbol _PL_new_term_ref . . .

I made sure the error is caused by this line:

goal_term = PL_new_term_ref();

It wouldn't complain when I put:

term_t goal_term;

in my program's header file in the private variables section, but it wouldn't accept this line:

goal_term = PL_new_term_ref();

in my main program. Any idea why I get this error message?

Thank you,

I added these lines:

#pragma comment(lib, "libpl.lib")
#pragma comment(lib, "plterm.lib")
#pragma comment(lib, "pthreadVC.lib")
#pragma comment(dll, "libpl.dll")
#pragma comment(dll, "plterm.dll")
#pragma comment(dll, "pthreadVC.dll")

to my source file, but now I get this error message:

Unhandled exception at 0x0054870f in myProg.exe:
0xC0000005: Access violation reading location 0x000000c.

And then there are two choices of Break and Continue.

Do I need to add anything else, or this error message is yet another indication that I am doing something (else) wrong?

Thanks for your help,