EntityDeploySplit error - Microsoft.Data.Entity.Build.Tasks.dll missing

Question

After a clean Windows reformat and installing Visual Studio 2013, trying to build a project with database-first Entity Framework edmx files yields the following error:

Answer 1

In my case, I had accidentally created two copies of one of my .edmx files, one in a subfolder, where I didn't notice it. Once I deleted the extra one, everything was fine.