下載完Unreal4原始碼，執行GenerateProjectFiles.bat
報錯
GenerateProjectFiles ERROR: We couldn't find a valid installation of Visual Studio. This program requires Visual Studio 2015 or Visual Studio 2013 or Visual Studio 2012. Please check that you have Visual Studio installed, then verify that the HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\InstallDir (or HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\14.0\InstallDir on 32-bit machines) registry value is set. Visual Studio configures this value when it is installed, and this program expects it to be set to the '\Common7\IDE\' sub-folder under a valid Visual Studio installation directory.
uj5u.com熱心網友回復：
我安裝UE4的時候也出這個問題了，你修改一下VS2013的環境變數配置轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/72654.html
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