GenerateRuntimeConfigurationFiles task failed unexpectedly on a project targeting netcoreapp1.0

Setup:

CLI Version : 2.0.0-preview1-005972 VS Version: d15rel 26507.0

Repro steps:

1. Create a new Asp.NET Core Web application (1.0) in VS
2. Add a global.json with { "sdk" : { "version": "1.0.4" } }
3. Right click project -> Publish -> Folder -> Publish.

It fails with the error

C:\Program Files\dotnet\sdk\2.0.0-preview1-005972\Sdks\Microsoft.NET.Sdk\build\Microsoft.NET.Sdk.targets(134,5): Error MSB4018: The "GenerateRuntimeConfigurationFiles" task failed unexpectedly.
System.InvalidCastException: [A]NuGet.ProjectModel.LockFile cannot be cast to [B]NuGet.ProjectModel.LockFile. Type A originates from 'NuGet.ProjectModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' in the context 'LoadFrom' at location 'C:\Program Files\dotnet\sdk\1.0.4\Sdks\Microsoft.NET.Sdk\tools\net46\NuGet.ProjectModel.dll'. Type B originates from 'NuGet.ProjectModel, Version=4.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' in the context 'LoadFrom' at location 'C:\Program Files\dotnet\sdk\2.0.0-preview1-005972\Sdks\Microsoft.NET.Sdk\tools\net46\NuGet.ProjectModel.dll'.
   at Microsoft.NET.Build.Tasks.LockFileCache.GetLockFile(String path)
   at Microsoft.NET.Build.Tasks.GenerateRuntimeConfigurationFiles.ExecuteCore()
   at Microsoft.NET.Build.Tasks.TaskBase.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()

cc @vijayrkn @mlorbetske @balachir

[vijayrkn]

@nguerrera for the publish issue, the code is in tfs and we will fix it.

[nguerrera]

Moved to CLI because the resolver is implemented there.