My First Analyzer... but in another projet don't found Collection.Immutable 8.0.0.0

[Nidkfr]

Hi,

I created an analyzer in a net8 project latest version of VS (17.8.6). All works, all unit tests work. But when I put the package in another project I have an error CS8032 for System.Collection.Immutable 8.0.0.0. I saw that in the VS folder it uses 7.0.0.0
I can't find a solution to make this work. Do you have any solutions?

[jasonmalinowski]

Although it's possible to bundle 8.0 you might run into some issues that way; can you just use 7.0? Visual Studio 17.9 Previews do now ship 8.0.

[Nidkfr]

for the workspace lib i make in same dll analyzer and codefix. I change all (comment all codefix code) change pakage
i have same erreur AD001 , typeInitializerException

<PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.8.0" />
<PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
<PackageReference Include="System.Collections.Immutable" Version="7.0.0" />

[jasonmalinowski]

Are you building with an older .NET SDK?

[Nidkfr]

normally I took the latest one: dotnet-sdk-8.0.101-win-x64. but I couldn't see if it's really this one that is used

[Nidkfr]

I took my project out of my solution in .net8 and moved it into the project template provided by visual, updated the packages and positioned myself in netStandard 2.0. Now everything works. I will stay in this configuration. I modified the old project to no longer have static initialization, and it shows me the real exception. It's still not possible to load the System.Immutable 8.0.0.0 library on vs17.8.3
On the other hand, on 17.9preview, it tells me that I cannot load System.runtime 8.0.0.0

CSC : warning AD0001: L'analyseur 'Akanea.Analyzer.CallingMethodNeedOnMultiLineAnalyzer' a levé une exception de type 'System.IO.FileNotFoundException' avec le message 'Impossible de charger le fichier ou l'assembly 'System.Runtime, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' ou une de ses dépendances. Le fichier spécifié est introuvable.'.

[jasonmalinowski]

Oh yeah, analyzers have to be netstandard. And don't reference System.Collections.Immutable if you don't have to, and also reference the lowest possible Microsoft.CodeAnalysis you can. If you're referencing 4.8 that means you can't be loaded in any Visual Studio lower than 17.8. That may not be a problem for you if this is a private analyzer for your team, but if you plan on more broadly distributing, you may want to target a lower version.