Unable to upgrade to .NET 8

[OfirD1]

I tried upgrading to .NET 8, using:

!sudo apt-get install -y dotnet-sdk-8.0 -qq &> /dev/null

But it issues an error:

---------------------------------------------------------------------------
NoSuchKernel                              Traceback (most recent call last)
[<ipython-input-2-54a73838a604>](https://localhost:8080/#) in <cell line: 145>()
    143 
    144 kernel_spec_manager = KernelSpecManager();
--> 145 real_kernel_spec: KernelSpec = kernel_spec_manager.get_kernel_spec(".net-csharp");
    146 real_kernel_install_path = real_kernel_spec.resource_dir;
    147 new_kernel_name = ".net-csharp_tcp";

[/usr/local/lib/python3.10/dist-packages/jupyter_client/kernelspec.py](https://localhost:8080/#) in get_kernel_spec(self, kernel_name)
    228         resource_dir = self._find_spec_directory(kernel_name.lower())
    229         if resource_dir is None:
--> 230             raise NoSuchKernel(kernel_name)
    231 
    232         return self._get_kernel_spec_by_name(kernel_name, resource_dir)

NoSuchKernel: No such kernel named .net-csharp

Any idea how to make it work?