Prerequisite for compiler install says .NET 8 but fails expecting framework 6.0

[quanglewangle]

See errors below. Have installed .NET 8

dotnet tool install --global ghul.compiler --version 0.6.13
You must install or update .NET to run this application.

App: /usr/share/dotnet/sdk/6.0.418/dotnet.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '6.0.26' (x64)
.NET location: /usr/share/dotnet/

The following frameworks were found:
5.0.17 at [/usr/share/dotnet/shared/Microsoft.NETCore.App]
8.0.1 at [/usr/share/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=6.0.26&arch=x64&rid=linux-x64&os=ubuntu.22.04

[degory]

The compiler itself definitely depends on .NET 8 (it needs runtime version 8 to execute, and SDK version 8 to support the build process). It works as expected on systems that have only .NET 8 SDK installed - that's how my local dev environments and the CD environment is configured and so that configuration is thoroughly tested.

However, one of the compiler dependencies ghūl pipes still references .NET 6. It's possible this is causing the problem.

I'll update ghūl pipes to .NET 8 and update the compiler to reference the updated version. Note though that .NET 5 is no longer supported by Microsoft, so you might have other issues with the combination of .NET 5 and .NET 8 SDKs installed on the same box.

[degory]

I've bumped the ghūl runtime and ghūl pipes projects to depend on .NET 8 runtime from .NET 6, and updated the ghūl compiler to reference the updated packages.

I've done some digging, and a .NET project doesn't inherit older framework requirements from its dependencies. The runtime follows the project's specified .NET version, loading dependencies even if they target older framework versions, on the assumption they will be forward compatible. It's not clear if the .NET tool installer follows this correctly however.