[Feature Request] Detect missing ASP.NET runtime on Linux

[CodesInChaos]

I installed NetPad on Manjaro (Arch based) from AUR. The .NET Core Runtime and .NET SDK were installed from the official repos. But I was missing the ASP.NET Runtime (optional dependency).

This made the script host crash immediate with this confusing error:

script-host process stopped unexpectedly
System.InvalidOperationException: No process is associated with this object.
at System.Diagnostics.Process.EnsureState(State state)
at System.Diagnostics.Process.get_HasExited()
at NetPad.Utilities.ProcessUtil.IsProcessRunning(Process process) in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/Utilities/ProcessUtil.cs:line 25
at NetPad.ExecutionModel.ClientServer.ScriptHost.ScriptHostProcessManager.IsScriptHostRunning() in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ScriptHost/ScriptHostProcessManager.cs:line 51
at NetPad.ExecutionModel.ClientServer.ScriptHost.ScriptHostProcessManager.PublishLifetimeEvent() in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ScriptHost/ScriptHostProcessManager.cs:line 276
at NetPad.ExecutionModel.ClientServer.ScriptHost.ScriptHostProcessManager.EnsureScriptHostStarted() in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ScriptHost/ScriptHostProcessManager.cs:line 183
at NetPad.ExecutionModel.ClientServer.ScriptHost.ScriptHostProcessManager.EnsureScriptHostStarted() in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ScriptHost/ScriptHostProcessManager.cs:line 118
at NetPad.ExecutionModel.ClientServer.ScriptHost.ScriptHostProcessManager.RunScript(Guid runId, DirectoryPath scriptHostDepsDir, DirectoryPath scriptDir, FilePath scriptAssemblyPath, String[] probingPaths) in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ScriptHost/ScriptHostProcessManager.cs:line 60
at NetPad.ExecutionModel.ClientServer.ClientServerScriptRunner.<>c__DisplayClass20_0.<b__0>d.MoveNext() in /home/runner/work/NetPad/NetPad/src/Core/NetPad.Runtime/ExecutionModel/ClientServer/ClientServerScriptRunner.cs:line 209
You must install or update .NET to run this application.

App: /tmp/NetPad/Execution/ClientServer/Processes/c5d0164f-0a35-4772-91ae-67398cc7121f/script-host/netpad-script-host
Architecture: x64
Framework: 'Microsoft.AspNetCore.App', version '10.0.0' (x64)
.NET location: /usr/share/dotnet

No frameworks were found.

Learn more:
https://aka.ms/dotnet/app-launch-failed

To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.AspNetCore.App&framework_version=10.0.0&arch=x64&rid=arch-x64&os=manjaro

The script did not have "Reference ASP.NET" checked. So I'm not sure why this runtime is required in the first place.

I suggest checking for the ASP.NET runtime in the dependency check window, and outputting that information along with the error as well.