Feature 'interpolated strings' is not available in C# 5. Please use language version 6 or greater.

Question

The following line does not compile when I put in a Razor View.

var extPropLookupNameCompania = $\"extension_{SettingsHelper.ClientId.Replace(\"-\", \"\")}_{         


        

Answer 1

If you are experiencing this error in a .NET Framework 4.5.1 project, upgrading to 4.5.2 solves the problem.