.NetCore project loading failed in JetBrains Rider on windows

Question

I have installed the latest version of JetBrains Rider 1 EAP and open .NetCore project with project.json that created by VS2015 , I have loading successfully , but when created new .NetCore web project or add new .NetCore class library with .csproj in old project with project.json that library loading failed

Project 'ClassLibrary' load failed: Cannot load the project with the current MSBuild toolset.
Please ensure MSBuild 15.0 is installed.

I have also installed the .NetCore SDK and runtime from microsoft

Ijssel

You'd better install Visual Studio 2017 Community edition as well, which contains all the dependencies, even if you don't plan to use VS. – Nival

Yes, Rider can't work with msbuild from .net core sdk... only with a visual studio's one – Lussi

@DragonFire, you are mistaken, at least for the current EAP build, you can as long as you build the MSbuild from source and have latest Mono. – Saintpierre

Answer 1

You need to build the MSbuild from source after install the latest Mono.

https://github.com/Microsoft/msbuild/wiki/Building-Testing-and-Debugging-on-.Net-Core-MSBuild

./cibuild.sh --target CoreCLR

Saintpierre

Answer 2

I found that I needed to install the build tools from VS 2017.

Note that after I did that, I get another error which is detailed here: https://youtrack.jetbrains.com/issue/RIDER-6179

Fenland

Answer 3

I faced this issue on Ubuntu, trying to build a .NET Core app.

I found these instructions: https://github.com/microsoft/msbuild/blob/master/documentation/wiki/Building-Testing-and-Debugging-on-.Net-Core-MSBuild.md

Which basically had me:

• clone msbuild repo locally:

  git clone https://github.com/Microsoft/msbuild

• build it with "bootstrap = true" mode on:

  ./build.sh /p:CreateBootstrap=true

• In Rider, point the MsBuild referenced to a "custom" one:

  1. File -> Settings -> Build, Execution, Deployment -> Toolset and Build
  2. Under "Use MSBuild version," select "Custom"
  3. Point to the {cloned msbuild}/artifacts/bin/bootstrap/netcoreapp2.1/MSBuild/MSBuild.dll
  4. Save

And then Rider was happier :)

Colfin