dotnet build fails for all frameworks besides net451

Steps to reproduce

dotnet new

modify the project.json to look like this:

{ "version": "1.0.0-*", "compilationOptions": { "emitEntryPoint": true }, "dependencies": { }, "frameworks": { "net451" :{}, "net35": {}, "dnxcore50": {}, "dotnet5.0": {}, "netstandard1.0": {} } }

run dotnet restore

run each of these:

dotnet build --framework net451 dotnet build --framework net35 dotnet build --framework dnxcore50 dotnet build --framework dotnet5.0 dotnet build --framework netstandard1.0

Expected behavior

Each build succeeds.

Actual behavior

The net451 build succeeds but every other build command fails with this output (where the framework version in the path is respective to each build):

Compiling test for .NETStandard,Version=v1.0
C:\Program Files\dotnet\dotnet.exe compile-csc @C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.rsp returned Exit Code 1
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(2,11): error CS0246: The type or namespace name 'System' could not be found (are you missing a using directive or an assembly reference?)
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(3,11): error CS0246: The type or namespace name 'System' could not be found (are you missing a using directive or an assembly reference?)
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(4,11): error CS0246: The type or namespace name 'System' could not be found (are you missing a using directive or an assembly reference?)
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(5,11): error CS0246: The type or namespace name 'System' could not be found (are you missing a using directive or an assembly reference?)
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(2,58): error CS0518: Predefined type 'System.String' is not defined or imported
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(3,54): error CS0518: Predefined type 'System.String' is not defined or imported
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(4,67): error CS0518: Predefined type 'System.String' is not defined or imported
C:\Users\achapman\Desktop\test\obj\Debug\netstandard1.0\dotnet-compile.assemblyinfo.cs(5,62): error CS0518: Predefined type 'System.String' is not defined or imported
C:\Users\achapman\Desktop\test\Program.cs(1,7): error CS0246: The type or namespace name 'System' could not be found (are you missing a using directive or an assembly reference?)
C:\Users\achapman\Desktop\test\Program.cs(5,18): error CS0518: Predefined type 'System.Object' is not defined or imported
C:\Users\achapman\Desktop\test\Program.cs(7,33): error CS0518: Predefined type 'System.String' is not defined or imported
C:\Users\achapman\Desktop\test\Program.cs(7,23): error CS0518: Predefined type 'System.Void' is not defined or imported

Compilation failed.
    0 Warning(s)
    12 Error(s)

Time elapsed 00:00:01.8160005

Environment data

dotnet --info output:

.NET Command Line Tools (1.0.0-beta-002202)

Product Information: Version: 1.0.0-beta-002202 Commit Sha: 60b23d5115

Runtime Environment: OS Name: Windows OS Version: 6.1.7601 OS Platform: Windows RID: win7-x64

[nuevoalex]

I don’t think this should be closed given that information.

I have no idea why I’m adding that dependency and even with it added back the other frameworks will not build.

You are missing dependencies required by the other frameworks.

What dependencies?

Why are those now required as explicit dependencies when the previous behavior of dnu and visual studio was to implicitly provide them?

Why does net451 magically work if I must explicitly require core libraries as dependencies now?

[blackdwarf]

@nuevoalex wait; are you saying that you are seeing dotnet build fail after dotnet restore even on a plain, “vanilla” dotnet new project?

My comment was more to the point that behaviors will be different with the CLI than what was done with DNX/DNU/DNVM. Docs are currently in PR in the dotnet/core-docs repo and they contain DNX->CLI migration document that explains how to move between these two worlds.