I am unable to open my Xamarin projects after upgrading to Xamarin 220.127.116.117 today. I tried to follow "Possible Fix 1: Change the installation to make sure the Visual Studio extensions are installed" on https://developer.xamarin.com/guides/cross-platform/windows/visual-studio/troubleshooting/missing-vs-extensions/ but there is no option for Xamarin for Visual Studio 2013 anymore:
Does Xamarin still support VS 2013 in the latest update?
I am using VS 2013 on Windows 10.
Edit: Here's a snippet from the install log in case that helps:
[2017-08-22 16:17:08.944] [Debug] Detecting software item 'Xamarin'
[2017-08-22 16:17:08.945] [Debug] Extension Xamarin file dnssd.dll not found in VS 2013
[2017-08-22 16:17:08.945] [Info] Status: successful
[2017-08-22 16:17:08.946] [Info] Component 'Xamarin' v. 4.6.0 present
[2017-08-22 16:17:08.946] [Info] Software item 'Xamarin': up to date
I tried to install the Universal Xamarin.Android Installer from http://store.xamarin.com/account/my/subscription/downloads and I get:
I've attached the full install log.
Also here is a screenshot of Visual Studio Help => About: