Trying to build projects with project references that target different SDK versions explodes

[NTaylorMullen]

Attached is a set of projects where Project1 => Project2 => Project3

Project1 and Project3 hve Microsoft.NET.Sdk 1.0.0-alpha-20161029-1. Project2 has Microsoft.NET.Sdk 1.0.0-alpha-20161026-2.

try and restore/build Project1. It results in:

"C:\Users\nimullen\Documents\temp\bug\src\Project1\Project1.csproj" (Build target) (1) ->
       (RunResolvePackageDependencies target) ->
         C:\Users\nimullen\.nuget\packages\microsoft.net.sdk\1.0.0-alpha-20161029-1\build\Microsoft.PackageDependencyResolution.targets(138,5): error MSB4062: The "Microsoft.NET.Build.Tasks.ResolvePackageDependencies" task could not be loaded from the assembly C:\Users\nimullen\.nuget\packages\microsoft.net.sdk\1.0.0-alpha-20161029-1\build\..\tools\netcoreapp1.0/Microsoft.NET.Build.Tasks.dll. Assembly with same name is already loaded Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [C:\Users\nimullen\Documents\temp\bug\src\Project1\Project1.csproj]

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Now, I get that a lot of this is an msbuildism but it's an awful experience 😄

[srivatsn]

With the moved to the SDK attribute a direct version is not specified and we will build with compatible SDKs. This problem is alleviated.