Assembly with same name is already loaded.

[halcwb]

I often run into this problem when using FSharp.Data:

The type provider '' reported an error: The type provider '/Users/halcwb/.nuget/packages/fsharp.data/6.4.0/lib/netstandard2.0/FSharp.Data.dll' reported an error: Assembly attribute 'TypeProviderAssemblyAttribute' refers to a designer assembly 'FSharp.Data.DesignTime' which cannot be loaded from path '/Users/halcwb/.nuget/packages/fsharp.data/6.4.0/typeproviders/fsharp41/netstandard2.0/FSharp.Data.DesignTime.dll'. The exception reported was: System.IO.FileLoadException - Could not load file or assembly 'FSharp.Data.DesignTime, Version=6.4.0.0, Culture=neutral, PublicKeyToken=49286adf818aa259'. Assembly with same name is already loaded.

I have no idea how to prevent this, as it is very inconsistent. Sometimes the error pops up, sometimes it doesn't. Happens both with Rider and VSCode.

[GrainyTV]

@halcwb I ran into the same problem after adding this library to my project. I installed version 6.5.0 which has the schema based jsonprovider but could not compile the project. The LSP showed this exact message at the top-level module declaration in Sublime Text 4 in my case.

I asked ChatGPT about this issue and it mentioned that stale builds or invalid caches can cause this behavior. It suggested to clean the build directory with these commands:

dotnet clean
dotnet nuget locals all --clear
dotnet restore

I am not sure which of these have fixed the issue for me but after restarting my editor it was not present anymore.