After each SDK update on ubuntu i cannot run .NET 7 solutions

[mcgiany]

I have ubuntu 20.04 and installed .NET SDK 7 and 8. Both from official MS package repository.
But after each update of the dotnet i cannot run any solution that is based on .NET 7

You must install or update .NET to run this application.

App: /path/to/my/solution
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '7.0.0' (x64)
.NET location: /usr/share/dotnet

The following frameworks were found:
  8.0.3 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=7.0.0&arch=x64&rid=linux-x64&os=ubuntu.22.04

Only fix is remove dotnet completely and install it again. Its so annoying.

When i run: dotnet --list-sdks i got this:

7.0.407 [/usr/share/dotnet/sdk]
8.0.203 [/usr/share/dotnet/sdk]

[mcgiany]

The problem is probably that dotnet --list-runtimes shows only .NET 8 runtimes even though i have also installed .net 7 runtimes.

[lextm]

.NET 7 end of life is May 14, so even if this is a reproducible issue no one is going to fix it now, https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core

Please stick to .NET 8.

[samcarswell]

We have the same issue occurring with .NET 8. We have an Ubuntu 22.04 image we use for build pipelines that installs the latest dotnet 8 SDK when it's built (eg. 8.0.103). If another is released (eg. 8.0.203, the pipeline will intermittently complain that we need to update the dotnet SDK:

You must install or update .NET to run this application.

App: /usr/lib/dotnet/sdk/8.0.103/dotnet.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '8.0.3' (x64)
.NET location: /usr/lib/dotnet/

The following frameworks were found:
  8.0.2 at [/usr/lib/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=8.0.3&arch=x64&rid=ubuntu.22.04-x64&os=ubuntu.22.04