Microsoft.DotNet.Cli.Utils 1.0.0-preview2-003121 is not compatible with netcoreapp1.0

Steps to reproduce

In Package Manger Console, run the following:

dotnet new
dotnet restore
install-package Microsoft.EntityFrameworkCore.Tools -Pre
dotnet restore

Expected behavior

PM> dotnet restore
log  : Restoring packages for C:\Users\[...]\project.json...
info :   CACHE https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnethostresolver/index.json
info :   CACHE https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnethost/index.json
info : Committing restore...
log  : Writing lock file to disk. Path: C:\Users\[...]\project.lock.json
log  : C:\Users\[...]\project.json
log  : Restore completed in 1415ms.

NuGet Config files used:
    C:\Users\[...]\AppData\Roaming\NuGet\NuGet.Config
    C:\ProgramData\nuget\Config\Microsoft.VisualStudio.Offline.config

Feeds used:
    https://api.nuget.org/v3/index.json
    C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

Actual behavior

log  : Restoring packages for C:\Users\sp-install\Documents\Visual Studio 2015\Projects\dbproj\project.json...
info :   CACHE https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnethostresolver/index.json
info :   CACHE https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnethost/index.json
warn : Detected package downgrade: Microsoft.NETCore.App from 1.0.0 to 1.0.0-rc2-3002702 
warn :  dbproj (>= 1.0.0) -> Microsoft.EntityFrameworkCore.Tools (>= 1.0.0-preview2-final) -> Microsoft.NETCore.App (>= 1.0.0) 
warn :  dbproj (>= 1.0.0) -> Microsoft.NETCore.App (>= 1.0.0-rc2-3002702)
error: Package Microsoft.DotNet.Cli.Utils 1.0.0-preview2-003121 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package Microsoft.DotNet.Cli.Utils 1.0.0-preview2-003121 supports:
error:   - net451 (.NETFramework,Version=v4.5.1)
error:   - netstandard1.6 (.NETStandard,Version=v1.6)
error: Package Microsoft.DotNet.ProjectModel 1.0.0-rc3-003121 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package Microsoft.DotNet.ProjectModel 1.0.0-rc3-003121 supports:
error:   - net451 (.NETFramework,Version=v4.5.1)
error:   - netstandard1.6 (.NETStandard,Version=v1.6)
error: One or more packages are incompatible with .NETCoreApp,Version=v1.0.
info : Committing restore...
log  : Lock file has not changed. Skipping lock file write. Path: C:\Users\[...]\project.lock.json
log  : C:\Users\[...]\project.json
log  : Restore failed in 1629ms.
dotnet : 
At line:1 char:1
+ dotnet restore
+ ~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError

Errors in C:\Users\[...]j\project.json

    Package Microsoft.DotNet.Cli.Utils 1.0.0-preview2-003121 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package Microsoft.DotNet.Cli.Utils 1.0.0-preview2-003121 supports:

      - net451 (.NETFramework,Version=v4.5.1)
      - netstandard1.6 (.NETStandard,Version=v1.6)
    Package Microsoft.DotNet.ProjectModel 1.0.0-rc3-003121 is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Package Microsoft.DotNet.ProjectModel 1.0.0-rc3-003121 supports:
      - net451 (.NETFramework,Version=v4.5.1)
      - netstandard1.6 (.NETStandard,Version=v1.6)
    One or more packages are incompatible with .NETCoreApp,Version=v1.0.

Environment data

dotnet --info output:

PM> dotnet --info
.NET Command Line Tools (1.0.0-preview1-002702)

Product Information:
 Version:     1.0.0-preview1-002702
 Commit Sha:  6cde21225e

Runtime Environment:
 OS Name:     Windows
 OS Version:  6.3.9600
 OS Platform: Windows
 RID:         win81-x64

[rbeadie]

Workaround/Correct Install

Run the following in package manager console:

dotnet new
dotnet restore
install-package Microsoft.EntityFrameworkCore.Tools -Pre
install-package Microsoft.EntityFrameworkCore.Tools.Core -Pre
install-package Microsoft.EntityFrameworkCore.Tools.Cli -Pre
dotnet restore

Then in the tools section of project.json, you will need to ensure that you import net451:

  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview2-final",
      "imports": "net451"
    }    
  }

[TheRealPiotrP]

This was shown to be an issue with an older CLI + Nuget combination. I’m not able to repro this today.