How to upgrade netcore.app v3.1.0 to latest version?

Question

I cloned c# sample project from GitHub. But its netcore.app v3.1.0 is too old. How to upgrade netcore.app to latest version?

D:\workspace_VS\DLL\SocketServer\src\SocketServer.Impl\bin\Debug\netcoreapp3.1>server.exe
You must install or update .NET to run this application.

App: D:\workspace_VS\DLL\SocketServer\src\SocketServer.Impl\bin\Debug\netcoreapp3.1\server.exe
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '3.1.0' (x64)
.NET location: C:\Program Files\dotnet\

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

Learn more:
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=win-x64&os=win10

Answer 1

Hi @longevity uyl , 

Welcome to Microsoft Q&A!

You can install the .NET Upgrade Assistant to upgrade the project from .NET Core 3.1 to .NET.

(Please backup your project before migration.)  

Sincerely,

Anna

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