Re: [rc-hackers] Error building YARP application under Visual Studio

[Lorenzo N. <lor...@ii...>]

I strongly suggest you use cmake to generate your project files. The
advantages:
- we document how to use cmake with YARP
- cmake is cross platform, with no effort you will get make files for
gcc if one day you decide to switch to another dev environment
- even if you stick to msvc you will be able to update project files
when new compilers are released
- cmake is faster than visual studio wizards...

Having said this, the problem you report appears to be due to a missing
library, it would be enough to just add winmm.lib in the linker options.

The "defaultlib 'MSVCRT' conflicts" is just a warning, you can ignore it.

cheers,
Lorenzo

On 21-Jun-10 3:40 PM, Trachtenberg Robert D (Bob) wrote:
>
> I am trying to build a YARP application with Microsoft Visual Studio
> 2005, but having some troubles.
>
> Is there a sample that describes how to configure a VS project which
> uses YARP?
>
>  
>
> I have built ACE and YARP on my PC, and I can run the YARP server
> successfully.
>
> Now I am trying to build a C++ project under Visual Studio 2005.
>
> I specified the following "Additional Dependencies: in the
> Linker>Input properties: YARP_OS.lib ACE.lib
>
>  
>
> My code looks as follows. It compiles OK, but has link errors (below).
>
>  
>
> #include "stdafx.h"
>
> #include <yarp/os/all.h>
>
> #include <iostream>
>
>  
>
> using namespace std;
>
> using namespace yarp::os;
>
> int _tmain(int argc, _TCHAR* argv[])
>
> {
>
>     printf("Hello, world\n");
>
>     Network yarp;
>
>     return 0;
>
> }
>
>  
>
> 1>Linking...
>
> 1>LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of
> other libs; use /NODEFAULTLIB:library
>
> 1>YARP_OS.lib(Time.obj) : error LNK2019: unresolved external symbol
> __imp__timeBeginPeriod@4 referenced in function "public: static void
> __cdecl yarp::os::Time::turboBoost(void)"
> (?turboBoost@Time@os@yarp@@SAXXZ)
>
> 1>YARP_OS.lib(Time.obj) : error LNK2019: unresolved external symbol
> __imp__timeGetDevCaps@8 referenced in function "public: static void
> __cdecl yarp::os::Time::turboBoost(void)"
> (?turboBoost@Time@os@yarp@@SAXXZ)
>
> 1>C:\SG\YARP_TESTING\YARP_SUMMMER\Debug\YARP_SUMMMER.exe : fatal error
> LNK1120: 2 unresolved externals
>
>  
>
> If I set "ignore all default libraries", I get tons of 'unresolved
> external symbol' errors
>
> How can I fix this?
>
>  
>
> Bob Trachtenberg
>
> tra...@lg... <mailto:tra...@lg...>
>
>  
>


-- 
Istituto Italiano di Tecnologia
Lorenzo Natale, PhD
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