Assembly version issue

[vstastny]

HI, after having downloaded FSharpPlus NuGet package of version 0.0.3
with dependency to FsControl (>= 1.0.8), using

let _11_r9 = (+) <!> (Some 3) <*> (Some 5)

in my project is without any problem.

This, however (using ZipList)

let _11_r15 = (+) <!> (ZipList <| seq { 1..3 } ) <*> (ZipList <| Seq.init 3 (fun _ -> 100))

gets compiled with the following message

No way to resolve conflict between "FSharp.Core, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" and "FSharp.Core, Version=4.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a". Choosing "FSharp.Core, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" arbitrarily.
Consider app.config remapping of assembly "FSharp.Core, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" from Version "4.3.0.0" [C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\3.0\Runtime\v4.0\FSharp.Core.dll] to Version "4.3.1.0" [] to solve conflict and get rid of warning.
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1605,5): warning MSB3247: Found conflicts between different versions of the same dependent assembly.

When run, the program crashes with the following

{"Could not load file or assembly 'FSharp.Core, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.":"FSharp.Core, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"}

This issue can be somehow solved by adding this line into App.config

<bindingRedirect oldVersion="4.3.1.0" newVersion="4.3.0.0"/>

Cheers
Vladimir

[gusty]

Thanks Vladimir.

Would removing the line:

<TargetFSharpCoreVersion>4.3.1.0</TargetFSharpCoreVersion></code>

solve the issue as well?

PS: Feel free to contribute with a Pull Request.

[vstastny]

Thank you for your comment.

I have downloaded the project FSharpPlus and manually included the assembly into the references of my new project. Everything worked well without the heck I mentioned above and without the need to change the TargetFSharpCoreVersion in FSharpPlus.fsproj.

When I created another project and included assemblies through the nuget package manager, at the end it resulted in a conflict between different versions of the same dependent assembly when running the program.

[gusty]

OK, let's fix it for next release of F#+.

[gusty]

This issue is old.
Now FsControl is merged here and FSharp.Core is referenced by a nuget so I will close it.
If there's still an issue with the assembly version I'm happy to reopen.