All system references missing Visual Studio 2013 NuGet Async

Question

I have a solution/team project set up in visual studio 2013 and for some time have had a working NuGet Microsoft.Bcl Async Package installed for NET Framework 4.0. Today whe

Answer 1

Just had the same problem. The reason for me was that all the files inside the Nuget package, suddenly become 0 byte size. I mean DLLs, nupkg file etc.

I reinstalled the package and it worked for me.