Microsoft .Net Core 1.0.1 SDK 1.0.0 Preview 2-003133 at: https://go.microsoft.com/fwlink/?LinkID=827524
Solution for this question:
I have my Azure Web App configured to deploy from a local git repository - I just push my changes to the Web App git repo and it builds and deploys the site.
I just updated to my ASP .NET Core site to: "version": "1.0.0-preview2-003133", previously it was 003131 which worked no problems.
The project is configured to use .NET Core SDK version 1.0.0-preview2-003133 which is not installed or cannot be found under the path D:\Program Files (x86)\dotnet. These components are required to build and run this project. Download the version of .NET Core SDK specified in global.json or update the SDK version in global.json to the version that is installed.