.NET Core SDK preview4

Use the simpler instructions but use --lang fsharp for dotnet new

F# works after install all supported os.

To check version, you can run

dotnet --version

and the output should be 1.0.0-preview4-004233

An quickstart, to create a console app and run it:

dotnet new -l fsharp
dotnet restore
dotnet run

To run an ASP.NET Core app, is the same, just use another template

dotnet new --lang fsharp -t web
dotnet restore
dotnet run

To use Visual Studio Code with Ionide with full intellisense,build,run (debug doesnt work) do dotnet build BEFORE opening the VSCode.

dotnet new -l fsharp -t lib
dotnet restore
dotnet build
code .

Notes

Like preview3, this version is msbuild based

• This version is based on msbuild (version 15.0) so .fsproj for project file
• normal command (dotnet build, dotnet pack, etc) continue to work, but invoke the msbuild
• use dotnet msbuild to run msbuild directly

Known issues

dotnet-migrate

dotnet migrate doesnt support F# yet:

• WORKAROUND: see tutorial in How-to-migrate-preview2-projects-to-preview4

error on build/pack using multiple frameworks (<TargetFrameworks>)

using <TargetFrameworks>net451;netcoreapp1.0</TargetFrameworks> the dotnet build/pack fails

• WORKAROUND: pass runtime to build net451, for example -r win7-x64

using .NET Framework as targets framework, the osx/unix build fails

Use a .net framwork (not core) like <TargetFramework>net451</TargetFramework> (or in TargetFrameworks) the dotnet build/pack fails on osx/unix, instead on windows work

• ISSUE: https://github.com/dotnet/sdk/issues/335
• WORKAROUND: see issue, if applicable

IDE Support

• VS Code with F# Ionide extension: ok (build/run/intellisense), ko (debug)
  • NOTE: the VSCode should be opened after the first dotnet build (ref ionide/ionide-vscode-fsharp#312 )
• VS 2017RC: no
• Notepad and cli: from day 0 all dotnet sdk commands, ok (new,restore/build/run/pack/publish/test), ko (migrate)