lnk2005

LNK 2005 in Visual C++ in Visual Studio 2010

由 こ雲淡風輕ζ 提交于 2019-12-10 12:57:38
问题 I'm trying to compile a C++ program, written using Visual C++ 2005 and MFC, in MS VS 2010. Sadly I'm getting the following error during compilation: Error 2 error LNK2005: "public: virtual __thiscall CMemDC::~CMemDC(void)" (??1CMemDC@@UAE@XZ) already defined in CMemDCImpl.obj Project\Project\Project\uafxcwd.lib(afxglobals.obj) Project. CMemDCImpl has a header file which contains definitions of all members of the class CMemDCImpl, and *.cpp file with their implementations. Please help me to

由于引用MFC库导致DllMain重复定义问题解决 error LNK2005

由 扶醉桌前 提交于 2019-12-09 12:27:46
最近在做一个项目，有个工程叫COMMUtil（DLL工程）.原本该项目中用的都是STL中的类。现在由于用了一个第三方的一个日志工具，里面用到了CString等MFC提供的类，所有要加上对MFC的引用。 将原本的使用Windows库改为在共享DLL中使用MFC. 但是编译后会报错。报错内容如下： ----- 已启动生成: 项目: COMMUtil, 配置: Debug Win32 ------ 1>正在编译... 1>COMMUtil.cpp 1>正在链接... 1>COMMUtil.obj : error LNK2005: _DllMain @12 已经在 mfcs80d.lib(dllmodul.obj) 中定义 1>..\debug\COMMUtil.dll : fatal error LNK1169: 找到一个或多个多重定义的符号 1>生成日志保存在“file://e:\COMM\COMMUtil\Debug\BuildLog.htm” 1>COMMUtil - 2 个错误，0 个警告 ========== 生成: 0 已成功, 1 已失败, 0 最新, 0 已跳过 ========== 解决办法，当添加MFC库时，在其中已经定义了DLLMAIN这个方法，所有需要将我COMMUtil.cpp文件中的DllMain 函数去掉即可。（方法来源： http://www

MSVC DLL exporting class that inherits from template cause LNK2005 already defined error

由 本秂侑毒 提交于 2019-12-04 14:24:22
I've been tracking an error in a huge project for 3 days and finally get a minimum reproducable example. I want to share this problem and ask some questions on the weird behavior of Visual Studio. When you export a class that inherits from a instantiated template class , like class __declspec(dllexport) classA : public Template<double>{} MSVC will also export the instantiated template class Template<double> in DLL. If the consumer include "template.h" in his code then instantiate a Template<double> , qnd at the same time, link to the above DLL, he will get two definition of Template<double> ,

How to avoid “error LNK2005:” (already defined stdlib functions) when compiling libpng with Microsoft Visual Studio '08?

由 大兔子大兔子 提交于 2019-12-03 20:39:11
问题 (Why I am trying to do this: I have had no luck in using the pre-built binaries for libpng on Windows (despite many hours of trial and error), and therefore am now trying to compile it myself. I found this helpful blog post concerning this, complete with a Microsoft Visual Studio 2008 project file, but unfortunately have still not been able to use it.) It successfully compiles when linking to the zlib binary found here, but when attempting to link it to a test file I receive the following: C:

error LNK2005 constructor already defined

由 耗尽温柔 提交于 2019-12-02 14:10:15
问题 hello i've got a little problem with my code. //club.h #pragma once #include<iostream> #include<conio.h> #include <string> #include<vector> #include"Palmares.h" #include"Stade.h" #include"Joueur.h" #include"Date.h" using namespace std; class Club { public: Club(int j, int m, int a, int c, string qualite, string n, string addressstade, string nom, string hist, string couleur, string vill, string addressclub); ~Club(); void setNom(string newnom); void setHistoire(string newt); void setDate(int

Namespaces and includes generate link error

由 家住魔仙堡 提交于 2019-12-02 08:13:53
I was playing around with namespaces when I encountered a lnk2005 error. I can't figure out how to get around the error. Here's the error: 1>Source.obj : error LNK2005: "int Chart::Bars::d" (?d@Bars@Chart@@3HA) already defined in Chart.obj 1>Source.obj : error LNK2005: "class foo Chart::l" (?l@Chart@@3Vfoo@@A) already defined in Chart.obj 1>Source.obj : error LNK2005: "int Chart::t" (?t@Chart@@3HA) already defined in Chart.obj 1>C:\Users\bnm\dev\examples\play\nmspca\Debug\nmspca.exe : fatal error LNK1169: one or more multiply defined symbols found 1> 1>Build FAILED. 1> 1>Time Elapsed 00:00:00

Namespaces and includes generate link error

由 我的梦境 提交于 2019-12-02 07:07:54
问题 I was playing around with namespaces when I encountered a lnk2005 error. I can't figure out how to get around the error. Here's the error: 1>Source.obj : error LNK2005: "int Chart::Bars::d" (?d@Bars@Chart@@3HA) already defined in Chart.obj 1>Source.obj : error LNK2005: "class foo Chart::l" (?l@Chart@@3Vfoo@@A) already defined in Chart.obj 1>Source.obj : error LNK2005: "int Chart::t" (?t@Chart@@3HA) already defined in Chart.obj 1>C:\Users\bnm\dev\examples\play\nmspca\Debug\nmspca.exe : fatal

LNK2005 Error linking static openCV libraries with Visual Studio and QT Creator

由 你说的曾经没有我的故事 提交于 2019-12-01 17:29:06
I built the static openCV 2.3 libraries. My project currently uses the dynamic ones with no problem, but now I want to use static libs. I added the libs to my .pro file: LIBS += "C:\Program Files\openCV_VS_static\opencv\build\lib\Release\opencv_calib3d231.lib" \ "C:\Program Files\openCV_VS_static\opencv\build\lib\Release\opencv_contrib231.lib" \ "C:\Program Files\openCV_VS_static\opencv\build\lib\Release\opencv_core231.lib" \ "C:\Program Files\openCV_VS_static\opencv\build\lib\Release\opencv_features2d231.lib" \ "C:\Program Files\openCV_VS_static\opencv\build\lib\Release\opencv_flann231.lib" \

how to ignore LNK2005 & LNK1169?

由 青春壹個敷衍的年華 提交于 2019-12-01 05:23:39
So I have a Visual Studio 2010 project that uses external libraries and in order to get it compile without LNK2005 I had to juggle arround with the order of the libraries in the linker settings. I got it to compile fine in release mode, but for whatever reasons I don't manage to get it to compile without LNK errors in debug. Is there no way to generally ignore LNK2005 and tell the linker to simply use whatever he encounters first? Thanks! //edit: here are some of the errors output of the PARTICULAR problem. however I already tried to solve that in different ways with each solution giving me

how to ignore LNK2005 & LNK1169?

由 社会主义新天地 提交于 2019-12-01 03:35:56
问题 So I have a Visual Studio 2010 project that uses external libraries and in order to get it compile without LNK2005 I had to juggle arround with the order of the libraries in the linker settings. I got it to compile fine in release mode, but for whatever reasons I don't manage to get it to compile without LNK errors in debug. Is there no way to generally ignore LNK2005 and tell the linker to simply use whatever he encounters first? Thanks! //edit: here are some of the errors output of the
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