# Missing UE\_4.27/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.exe after build **URL:** \ **Category:** 简体中文 (Simplified Chinese)\ **Tags:** unreal-engine, Epic-Pro-Support, question\ **Created:** [November 11, 2025, 6:13am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892 "2025-11-11T06:13:36Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![anonymous-edc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Post date:** [November 11, 2025, 6:13am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892/1 "2025-11-11T06:13:36Z")
更新完epic games launcher（11月7日最新版）后，发现UE4的工程不能生成sln文件了，步骤见上面重现步骤（UE5的工程文件可以正常生成），报错如下： \
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```auto Building UnrealBuildTool in D:/Epic Games/UE_4.27... Running: C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /nologo /verbosity:quiet "D:/Epic Games/UE_4.27/Engine/Source/Programs/UnrealBuildTool/UnrealBuildTool.csproj" /property:Configuration=Development /property:Platform=AnyCPU Missing D:/Epic Games/UE_4.27/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.exe after build ``` \
我本地安装了UE4.27和UE5.6.1。网上搜索了一些方案后也无法解决该问题。 本地尝试写了autogen.bat文件可以使用生成sln（脚本见下面）。 \
但不够完美，请问有好的解决方案来生成sln文件吗？ \
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```auto @echo off set "UnrealBuildTool_Path=D:\Epic Games\UE_4.27\Engine\Binaries\DotNET\UnrealBuildTool.exe" "%UnrealBuildTool_Path%" Development Win64 -Project="%CD%\UE4Demo.uproject" -editor -projectfiles pause ``` \
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**Author:** ![tuo.chen](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@tuo.chen](https://forums.unrealengine.com/u/tuo.chen)\ **Post date:** [November 12, 2025, 7:18am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892/2 "2025-11-12T07:18:21Z")
您好，正常流程是在uproject上右键，调用 UnrealVersionSelector，通过UVS调用UBT生成工程 请问下您上面那句build UBT是在哪个阶段调用的？ ---
**Author:** ![anonymous-edc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Post date:** [November 13, 2025, 7:45am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892/3 "2025-11-13T07:45:33Z")
对的，就是uproject上右键，选择引擎然后生成sln文件，这时就报错了。 （个人感觉是被UE5的UnrealVersionSelector指定了去找Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.exe，但是UE4的UBT其实是在目录Engine/Binaries/DotNET/UnrealBuildTool.exe下，没有UnrealBuildTool这一层目录） ---
**Author:** ![tuo.chen](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@tuo.chen](https://forums.unrealengine.com/u/tuo.chen)\ **Post date:** [November 14, 2025, 9:10am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892/4 "2025-11-14T09:10:35Z")
您好，不太清楚中间是哪个修改出了问题​，不过调试了一下确实发现找不到UBT路径的问题 可以在 BaseEngine.ini ​中加入 ​ [PlatformPaths] UnrealBuildTool=Engine/Binaries/DotNET/UnrealBuildTool.exe ​ 就可以找到正确的UBT地址了​ ---
**Author:** ![anonymous-edc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Post date:** [November 14, 2025, 9:15am UTC](https://forums.unrealengine.com/t/missing-ue-4-27-engine-binaries-dotnet-unrealbuildtool-unrealbuildtool-exe-after-build/2684892/5 "2025-11-14T09:15:33Z")
感谢感谢，这个方案确实更为优雅