Visual Studio / Sql Server Management Studio crashes on startup.

Error text 

ExceptionMessage: "Method not found: '!!0[] System.Array.Empty()'."

Cause

This issue appears to happen when compiling code against the latest .NET framework (4.6+) and attempting to run on older versions of the framework. Prompt requires the latest version to provide Azure support and the libraries used should be backward compatibile but sometimes this error happens..

How to fix

Please download and install the latest .NET Framework from here: https://www.microsoft.com/en-gb/download/details.aspx?id=48130

If you continue to experience problems, please contact Redgate Support.