解决error LNK2001: unresolved external symbol _CrtDbgReportW

最新推荐文章于 2023-11-29 22:32:53 发布

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最新推荐文章于 2023-11-29 22:32:53 发布

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分类专栏： c++ 软件开发文章标签： C++ 64位 library debug

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本文介绍了一个在64位Debug配置下遇到的链接错误LNK2019和LNK1120，并提供了解决方案：将RuntimeLibrary配置从Multi-threadedDLL改为Multi-threadedDebugDLL。

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工程在release64为下设置Runtime Libraty 为Multi-threaded DLL (/MD)可以编译通过，在debug64下同样的设置报如下错误：

1>CNxMediaFileInfoXML.obj : error LNK2019: unresolved external symbol __imp__CrtDbgReportW referenced in function "wchar_t * __cdecl A2WBSTR(char const *,int)" (?A2WBSTR@@YAPEA_WPEBDH@Z)
1>atlsd.lib(Allocate.obj) : error LNK2001: unresolved external symbol _CrtDbgReportW
1>atlsd.lib(AtlTraceModuleManager.obj) : error LNK2001: unresolved external symbol _CrtDbgReportW
1>atlsd.lib(Externs.obj) : error LNK2019: unresolved external symbol _CrtDbgReportW referenced in function "void __cdecl ATL::AtlThrowImpl(long)" (?AtlThrowImpl@ATL@@YAXJ@Z)
1>atlsd.lib(AtlDebugAPI.obj) : error LNK2001: unresolved external symbol _CrtDbgReportW
1>atlsd.lib(atlstr.obj) : error LNK2001: unresolved external symbol _CrtDbgReportW
1>atlsd.lib(atlbase.obj) : error LNK2001: unresolved external symbol _CrtDbgReportW
1>atlsd.lib(Externs.obj) : error LNK2019: unresolved external symbol _CrtDbgReport referenced in function "void __cdecl `dynamic initializer for 'public: static class ATL::CTrace ATL::CTrace::s_trace''(void)" (??__E?s_trace@CTrace@ATL@@2V12@A@@YAXXZ)
1>atlsd.lib(AtlTraceModuleManager.obj) : error LNK2001: unresolved external symbol _CrtDbgReport
1>Debug64\NxFVMediaFileReaderInfo.dll : fatal error LNK1120: 3 unresolved externals

解决方法：在debug64下Runtime Libraty 设置为Multi-threaded Debug DLL (/MDd）即可。