HTTP Error 500.31 - Failed to load ASP.NET Core runtime

Common solutions to this issue:

The specified version of Microsoft.NetCore.App or Microsoft.AspNetCore.App was not found.

Specific error detected by ANCM:

You must install or update .NET to run this application. App: C:\Users\Administrator\source\repos\NetCoreDatabase\WebApplication1\bin\Debug\net5.0\WebApplication1.dll Architecture: x64 Framework: 'Microsoft.AspNetCore.App', version '5.0.0' (x64) .NET location: C:\Program Files\dotnet\ The following frameworks were found: 2.1.28 at [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] 3.1.18 at [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] 3.1.31 at [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] 6.0.11 at [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.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.AspNetCore.App&framework_version=5.0.0&arch=x64&rid=win10-x64

Troubleshooting steps:

• Check the system event log for error messages
• Enable logging the application process' stdout messages
• Attach a debugger to the application process and inspect

For more information visit: https://go.microsoft.com/fwlink/?LinkID=2028526

解决方案：

.NET 5.0运行环境安装包下载

https://www.cscode.net/archive/newdoc/361754593390597.html