Update .NET Interactive to .NET 9

[jonsequitur]

No description provided.

[rbuergi]

What is the ETA of this?

[kimmywork]

Met issue might related to this:

Error: System.IO.FileNotFoundException: Could not load file or assembly 'System.Runtime, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.

File name: 'System.Runtime, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Submission#5.<<Initialize>>d__0.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Submission#5.<Initialize>()
at Submission#5.<Factory>(Object[] submissionArray)
at Microsoft.CodeAnalysis.Scripting.ScriptExecutionState.RunSubmissionsAsync[TResult](ImmutableArray`1 precedingExecutors, Func`2 currentExecutor, StrongBox`1 exceptionHolderOpt, Func`2 catchExceptionOpt, CancellationToken cancellationToken)

#!about

.NET Interactive

© 2020-2024 Microsoft Corporation

Version: 1.0.556801+2d9726b514498cd84403a1d5d13da3161c99eab2

Library version: 1.0.0-beta.24568.1+2d9726b514498cd84403a1d5d13da3161c99eab2

Build date: 2024-12-03T06:43:21.0661917Z

[jonsequitur]

@kimmywork Yes. In the meantime, the workaround is to have the .NET 8 SDK installed as well.

[Martin-Molinero]

+1
having net 8 sdk installed doesn't seem to be enough for it to work? net9 builds wont work? is there some other workaround to get it going with net9 builds?

error CS1705: Assembly 'XYZ' with identity 'XYZ, Version=2.5.0.0, Culture=neutral, PublicKeyToken=null' uses 
'System.Linq.Expressions, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' which has a higher version than 
referenced assembly 'System.Linq.Expressions' with identity 'System.Linq.Expressions, Version=8.0.0.0, Culture=neutral, 
PublicKeyToken=b03f5f7f11d50a3a'

>dotnet --list-sdks
8.0.403 [C:\Program Files\dotnet\sdk]
9.0.101 [C:\Program Files\dotnet\sdk]

>dotnet interactive --version
1.0.556801+2d9726b514498cd84403a1d5d13da3161c99eab2

[rbuergi]

I have mine even compiled for net8.0 and net9.0 and it won't load the dependencies, especially aspnetcore v9, even though they are also built for net8.0 and net9.0... I'm currently not able to use polyglot notebooks at all. Would be really glad to get an update, feeling bad about having upgraded my project to net9, but don't want to go back.

[laurentpayot]

It works for me on the latest VS Code on my Ubuntu 24.10 machine with .NET 9 and 8 installed.

[tmarkovski]

It works for me on the latest VS Code on my Ubuntu 24.10 machine with .NET 9 and 8 installed.

It doesn't actually use net9. It only load net8 assemblies. Try it:

#!csharp
Console.WriteLine(Environment.Version);

Does not work with latest Microsoft.Extensions.AI which require .net9. Please upgrade!