When support for .net core?

[ZeeLyn]

When support for .net core?

[enricosada]

@ww198643 Type provider require .net standard 2.0.

See visualfsharp roadmap for more info

Edited, will not work in 2.0 either, see #16 (comment) below

[ed-ilyin]

I'm trying to use this lib in netstandard2.0 preview1 project, but getting error at compile time

FSC : error FS3031: The type provider 'C:\Users\edil\.nuget\packages\fsharp.data.typeproviders\5.0.0.2\lib\net40\FSharp.Data.TypeProviders.dll' reported an error: Assembly attribute 'TypeProviderAssemblyAttribute' refers to a designer assembly 'FSharp.Data.TypeProviders' which cannot be loaded or doesn't exist. Could not load file or assembly 'FSharp.Data.TypeProviders, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified. [C:\Users\edil\git\MyProject.fsproj]

[enricosada]

Type providers doesnt work in 2.0 either.
VF# team updated the roadmap and excluded type providers for 2.0, see dotnet/fsharp#3069 for more info

[larjo]

I understand that I cant use type providers when targeting netstandard2.0.

But shouldn't they work when I target net461?

> dotnet --version
1.0.4

> gc .\src\library\library.fsproj | select -index 2
<TargetFramework>net461</TargetFramework>

> dotnet add .\src\library\library.fsproj package FSharp.Data.TypeProviders
> dotnet restore
> dotnet build
...
 error FS3031: The type provider 'C:\Users\lbr606\.nuget\packages\fsharp.data.typeproviders\5.0.0.2\lib\net40\FSharp.Data.TypeProviders.dll' reported an error: Assembly attribute 'TypeProviderAssemblyAttribute' refers to a designer assembly 'FSharp.Data.TypeProviders' which cannot be loaded or doesn't exist. Could not load file or assembly 'FSharp.Data.TypeProviders, Culture=neutral, PublicKeyToken=null'.

[dsyme]

@larjo Please add a bug at http://github.com/Microsoft/visualfsharp. This is likely to be a limitation of using the F# compiler when executing on .NET Core.

[dsyme]

@larjo The error is different when using .NET SDK 2.0 preview2, see dotnet/fsharp#3303

[dsyme]

@larjo We have looked into this. You can use type providers with the new project file format when targeting net461, you just need to either compile using "msbuild", or apply the second workaround listed in dotnet/fsharp#3303

[gfritz]

I tried the workaround documented in this dotnet/fsharp#3303 (comment) with WsdlService. The approach in that comment still fails for me, however the error is different from the other errors in that issue:

FSC : error FS2024: Static linking may not be used on an assembly referencing mscorlib (e.g. a .NET Framework assembly) when generating an assembly that references System.Runtime (e.g. a .NET Core or Portable assembly). [C:\git\tp-tests\wsdlserviceapp\wsdlserviceapp.fsproj]

Is FS2024 happening primarily because the Type Providers in FSharp.Data.TypeProviders are not "cross targeting" like in the linked comment? I could not find a way to determine if they were or were not. I have a test repo https://github.com/gfritz/wsdlserviceapp and a README with steps and screenshots.

[daz10000]

Is there any update on this? - we have been using FSharp.Data extensively with dotnet core (mainly the type providers like CSV and XML provider) and then using the magic workaround dotnet/fsharp#3303 to keep the tooling happy. It all works, but only downside is lots of warnings every time you run the executable. Would be great to get a clean FSharp.Data build on dotnet core ,

Darren

:\src\DemGslc\src\DemGslc\DemGslc.fsproj : warning NU1701: Package 'FSharp.Data 2.4.5' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETCoreApp,Version=v2.0'. This package may not be fully compatible with your project.

[dsyme]

Is there any update on this? - we have been using FSharp.Data extensively with dotnet core (mainly the type providers like CSV and XML provider) and then using the magic workaround dotnet/fsharp#3303 to keep the tooling happy. It all works, but only downside is lots of warnings every time you run the executable. Would be great to get a clean FSharp.Data build on dotnet core ,

Do you mean http://github.com/fsharp/FSharp.Data, rather than this set of (old) type providers?

[daz10000]

Ooops - yes ;) didnt notice I was in the wrong project.

[dsyme]

Note this is a very old collection of type providers that are Windows-specific and .NET Framework-specific. For up-to-date type providers see https://fsharp.org/guides/data-access/

For WSDL see https://github.com/fsprojects/FSharp.Data.WsdlProvider for a more recent provider, also https://github.com/fsprojects/SwaggerProvider