I have followed the instructions to setup and host my own NuGet feed. I am running the web application on a Windows 2012 (IIS 8.5) box.
I build and
The NuGet.config file in either %APPDATA%\NuGet or $(SolutionDir).nuget may be referring to unexpected "active source" URLs. For example, the nuget.exe brought by the TFS build agent install might be aware of NuGet v2 protocol only while the URLs refer to v3 protocol. Or the custom NuGet server URL might be missing from NuGet.config.