Unresolved external symbols in Visual Studio 2013 when using UHD - c++

Question

I can't seem to get a very simple program to compile in Visual Studio 2013. My goal is to incorporate UHD into a C++ program (UHD Driver and Libraries for Windows). I downloaded and installed the Windows UHD package.Since the library also depends on Boost, I also downloaded the appropriate Boost library. After that, I wrote a quick test program in Visual Studio 2013:
#include "stdafx.h"
#include <iostream>
#include <uhd\usrp\multi_usrp.hpp>
#include <uhd\types\device_addr.hpp>
using namespace uhd;
int main(void)
{
device_addr_t hint;
device_addrs_t dev_addrs = device::find(hint);
system("pause");
return 0;
}
In case anyone is interested, this program should locate any USRPs attached to a host PC. I defined the appropriate include paths in Visual Studio: . .
To be clear, I included two paths to the header files:
C:\Program Files (x86)\UHD\include and C:\Program Files (x86)\boost_1_55_0
and one path to the library:
C:\Program Files (x86)\UHD\lib
When I wrote the above program, Visual Studio recognized the additional include files, recognized device_addr_t as a typedef, and didn't throw any errors. However, when I built the program, I received these errors:
Error 3 error LNK2019: unresolved external symbol "__declspec(dllimport) public: static class std::vector<class uhd::device_addr_t,class std::allocator<class uhd::device_addr_t> > __cdecl uhd::device::find(class uhd::device_addr_t const &)" (__imp_?find#device#uhd##SA?AV?$vector#Vdevice_addr_t#uhd##V?$allocator#Vdevice_addr_t#uhd###std###std##ABVdevice_addr_t#2##Z) referenced in function _main C:\Users\...\Documents\Visual Studio 2013\Projects\uhd_test\uhd_test\uhd_test.obj uhd_test
Error 2 error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall uhd::device_addr_t::~device_addr_t(void)" (__imp_??1device_addr_t#uhd##QAE#XZ) referenced in function "public: void * __thiscall uhd::device_addr_t::`scalar deleting destructor'(unsigned int)" (??_Gdevice_addr_t#uhd##QAEPAXI#Z) C:\Users\...\Documents\Visual Studio 2013\Projects\uhd_test\uhd_test\uhd_test.obj uhd_test
Error 1 error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall uhd::device_addr_t::device_addr_t(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_??0device_addr_t#uhd##QAE#ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std###Z) referenced in function _main C:\Users\...\Documents\Visual Studio 2013\Projects\uhd_test\uhd_test\uhd_test.obj uhd_test
Error 4 error LNK1120: 3 unresolved externals C:\Users\...\Documents\Visual Studio 2013\Projects\uhd_test\Debug\uhd_test.exe uhd_test
I've encountered these errors before in other programs, but I was able to resolve them relatively easily; either I would misspell a crucial include, or there would be an issue with a template class. However, in this instance, I can't seem to resolve the issue.
Any constructive input would be appreciated.
NOTE: In addition to defining the library directory path, I've explicitly added the UHD library, and I receive the same errors.

Answer 1

I got your example working. Here's the software versions I used since you didn't mention much in your description:
Microsoft Visual Studio 2013
VC++ Redistributable Package for VS2013 (vcredist_x86)
UHD 003.007.002, VS2013, Win32
Boost 1.56, lib32-msvc-12.0 binary package
Here are the project configuration properties you need to set in your VS2013 applications:
C/C++ -> General -> Additional Include Directories
C:\local\boost_1_56_0
C:\Program Files (x86)\uhd\include
Linker -> General -> Additional Library Directories
C:\local\boost_1_56_0\lib32-msvc-12.0
C:\Program Files (x86)\uhd\lib
Linker -> Input -> Additional Dependencies
uhd.lib
I think the last step is what's tripping you up, good luck!

Answer 2

I followed exactly what David Greene said, and I ended up with the same errors. Eventually I figured out that I had downloaded the 64-bit UHD, but I was using Visual Studio 2013 Express, which was a 32-bit compiler. Downloading the 32-bit version of UHD for Visual Studio 2013 solved the problem. For anyone else having this problem, double check that the compiler matches which version of UHD you install.