Error in migration from ASP.NET 5 RC1 to ASP.NET Core 1.0

I am getting lots of error after trying to migrate from ASP.NET 5 RC1 to ASP.NET Core 1.0 like below

The dependency Microsoft.AspNetCore.Html.Abstractions 1.0.0 in project does not support framework DNX,Version=v4.5.1. 

common sentence in error is 

project does not support framework DNX,Version=v4.5.1

I am following the documentation from Microsoft Doc. Is there another documentation for migration? or Am i doing something wrong?.