Visual Studio 2013 NuGet package management not working

Question

Strange issue I've had for the past few weeks. Running Windows 8 with Visual Studio 2013 Premium Ed. with Update 1. NuGet package manager within Visual Studio simply doesn't work. I've uninstalled/reinstalled it. I've updated my local NuGet.exe (was running 2.5, now 2.8.5) - made sure to include as a path variable. Even from the console, I can't install or update any packages. Console is confirmed running 2.8.50313.46.

From the manager, it simply loops the progress bar repeatedly displaying "Retrieving information..". Nothing displays for Updates or Online. From the Installed Packages, I can see everything within my solution with no problem.

Running as administrator as this post suggests for VS 2013 Express doesn't work either. Another post found it was a nuget.org issue, but in my case my colleagues can access nuget.org from within the package manager (same network) with no issues. Edit: I've also removed the suo files from my solution before opening it up on Visual Studio.

Any ideas on how to fix this?

Answer 1

Seems like nuget.org removed support for default TLS version (1.1).

Run this command in NuGet command control (PM) to use version 1.2:

[Net.ServicePointManager]::SecurityProtocol=[Net.ServicePointManager]::SecurityProtocol-bOR [Net.SecurityProtocolType]::Tls12 

However, it seems like a non-permanent solution, so after restarting Visual Studio, you need to run command again. Too bad.

Please notify if/when you find permanent solution!

Answer 2

I had the same issue. Uninstalling NuGet, restarting VS2013, then installing NuGet again worked for me.

You can do this in VS by going to Tools -> Extensions and Updates.