The projectname.deps.json file is removed every 2nd build. #4779

[BillHiebert]

Copied from https://github.com/dotnet/cli/issues/4779

Install VS d15prerel.25918.01 build
Create a new ASP.NET Core Web Applicatoin (.NET Core)
Open the bin\debug\netcoreapp1.0 folder so you can see the build output
Build once deps file is there
Build again it is gone
Build again it is back
This causes the runtime (F5) to fail every 2nd build.