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Unreal Engine Graphic Notes: could not be compiled. Try rebuilding from source manually. Problem solving

2022-07-30 09:32:00 【The king of game development】

问题描述

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从SVN上Checkout的必要文件,On the other computer to build once no problem,The results in this relatively new computer on the following problems：

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解决办法

尝试生成sln文件：
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弹出了如下提示：

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Running D:/Unreal Engine/UE_5.0/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.exe  -projectfiles -project="XXXXXXX.uproject" -game -rocket -progress -log="XXXXXX/Saved/Logs/UnrealVersionSelector-2022.07.26-09.04.16.log"
A fatal error occurred. The required library hostfxr.dll could not be found.
If this is a self-contained application, that library should exist in [D:\Unreal Engine\UE_5.0\Engine\Binaries\DotNET\UnrealBuildTool\].
If this is a framework-dependent application, install the runtime in the global location [C:\Program Files\dotnet] or use the DOTNET_ROOT environment variable to specify the runtime location or register the runtime location in [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x64\InstallLocation].

The .NET Core runtime can be found at:
  - https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=win10-x64

在.NET Core官网下载并安装.NET Core.

Then again the following tips

Running D:/Unreal Engine/UE_5.0/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool.exe  -projectfiles -project="XXXXXXX.uproject" -game -rocket -progress -log="XXXXXXX/Saved/Logs/UnrealVersionSelector-2022.07.26-09.16.23.log"
You must install or update .NET to run this application.

App: D:\Unreal Engine\UE_5.0\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.exe
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '3.1.0' (x64)
.NET location: C:\Program Files\dotnet\

The following frameworks were found:
  6.0.7 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

Learn about framework resolution:
https://aka.ms/dotnet/app-launch-failed

To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=3.1.0&arch=x64&rid=win10-x64