Shulou(Shulou.com)06/02 Report--

Recently, because I want to change a MFC project to rewrite learning MFC, I did not expect to use VS2013 to create the simplest MFC project to run hundreds of classes similar to "Error LNK2019: unparsed external symbols. Mfcs120ud.lib" error.

After a lot of twists and turns, I finally found out where the problem lies. Open C:\ Users\ Administrator\ AppData\ Local\ Microsoft\ MSBuild\ v4.0\ Microsoft.Cpp.Win32.user.props

It is found that the default library references $(WindowsSDK_LibraryPath_x64), that is, the 64-bit version of WindowsSDK's Lib library, while the compilation platform for Win32,Win32 in my VS project is not compatible with 64-bit versions of lib or dll libraries.

In addition, my project's default MFC library reference $(VCInstallDir) atlmfc\ lib is also 32-bit and is not compatible with 64-bit Windows SDK. I don't want to compile the 64-bit platform here, so I have to set both the library version and the compilation platform to 32-bit. The solution is simple: just change the $(WindowsSDK_LibraryPath_x64) of Microsoft.Cpp.Win32.user.props to $(WindowsSDK_LibraryPath_x86).

Here, I would like to complain that the most painful thing about VC++ development is that the compilation is not smooth. Because many development libraries are not backward compatible, various Dll,Lib or incorrect compiler versions will cause a lot of problems, as well as a lot of development environment configuration problems. It's better to open unity3d, no matter who wrote the old version in the unity3d integrated development environment, you can upgrade perfectly with a little modification, there is basically nothing to compile, but the version is not compatible. Of course, it can be because I am not familiar with VC++ development, to solve these miscellaneous problems is also a kind of improvement.

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