Fable: It was not possible to find any compatible framework version

[amsterdamharu]

Description

I guess this was mentioned here but that is probably a separate issue.
Getting started does not work on Fedora with the error:

It was not possible to find any compatible framework version
The specified framework 'Microsoft.NETCore.App', version '1.0.4' was not found.
  - Check application dependencies and target a framework version installed at:
      /
  - Alternatively, install the framework version '1.0.4'.

Some information

[me@localhost src]$ mono --version
Mono JIT compiler version 5.0.1.1 (2017-02/5077205 Wed May 24 13:16:08 UTC 2017)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
    TLS:           __thread
    SIGSEGV:       altstack
    Notifications: epoll
    Architecture:  amd64
    Disabled:      none
    Misc:          softdebug 
    LLVM:          supported, not enabled.
    GC:            sgen (concurrent by default)

[me@localhost src]$ dotnet --info
.NET Command Line Tools (2.1.0-preview1-007012)

Product Information:
 Version:            2.1.0-preview1-007012
 Commit SHA-1 hash:  b60272d64d

Runtime Environment:
 OS Name:     fedora
 OS Version:  25
 OS Platform: Linux
 RID:         fedora.25-x64
 Base Path:   /usr/share/dotnet-sdk-latest-linux-x64/sdk/2.1.0-preview1-007012/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

[me@localhost src]$ dotnet fable --version
It was not possible to find any compatible framework version
The specified framework 'Microsoft.NETCore.App', version '1.0.4' was not found.
  - Check application dependencies and target a framework version installed at:
      /
  - Alternatively, install the framework version '1.0.4'.

I was working with the npm of Fable and that is working fine but noticed the following message when installing

npm WARN deprecated [email protected]: 
Fable is not distributed through npm anymore, check http://fable.io for more info

Trying to create a soft link gets me another error:

# as su
ln -s /usr/share/dotnet-sdk-latest-linux-x64/shared/Microsoft.NETCore.App/2.0.0 /usr/share/dotnet-sdk-latest-linux-x64/shared/Microsoft.NETCore.App/1.0.4

[me@localhost src]$ dotnet fable yarn-run start

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'System.Threading, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at System.Console.get_Out()
   at Fable.CLI.Main.startServer(Int32 port, Int32 timeout, FSharpFunc`2 onMessage, FSharpFunc`2 continuation)
   at Fable.CLI.Main.main(String[] argv)

Using the .net core runtime binaries 1.0.4 and put the shared/Microsoft.NETCore.App/1.0.4 directory in /usr/share/dotnet-sdk-latest-linux-x64/shared/Microsoft.NETCore.App/ I get the following error:

[me@localhost src]$ dotnet fable start
Error: assembly specified in the dependencies manifest was not found -- package: 'FSharp.Compiler.Service', version: '13.0.0', path: 'lib/netstandard1.6/FSharp.Compiler.Service.dll'

[lvicentesanchez]

I having the same problem with the official release.

[alfonsogarciacaro]

I just published a new Fable.Template version with beta support for netcore2, can you please give it a try?

dotnet new -i Fable.Template
dotnet new fable -n MyFableApp
cd MyFableApp

And check the README for further instructions :)

[lvicentesanchez]

@alfonsogarciacaro seems to be working now :)

[lvicentesanchez]

At least for me on Arch Linux with 2.0.0 stable release.

[alfonsogarciacaro]

Great, thanks for the confirmation @lvicentesanchez!

[kerams]

I'm having the exact same problem on Windows with Fable.Template.Elmish.React.Demo and core 2.0.0.

[MangelMaxime]

Elmish templates are not updated for netstandard 2.0 format.

[MangelMaxime]

Please open an issue on elmish template repo.

[kerams]

There's already https://github.com/fable-elmish/templates/issues/25 by the looks if it :)