"Could not launch Visual studio" error (on Mac)

Question

I updated Visual Studio on Mac and after it tried to start, it told me I need to install Mono and directed me to a web page for that. I installed Mono. Now every time I launch Visual Studio, it just says

Could not launch Visual Studio

This application requires Xamarin.Mac native library side-by-side. Please download and install the latest version of Mono.

I tried restarting but that didn't help.

What now?

(I'm running the latest macOS, and updated XCode if that matters. Mono is 5.4.0.201.)

EDIT

Uninstalling and reinstalling is still the only way as the answer suggests, on: 2019:

• March
• July
• August
• September

Answer 1

The fastest and easiest way will be to uninstall and reinstall Visual Studio.