Build error “Cannot find name 'Record'” with bootstrap 4

Question

Today, I decided to migrate my ASP .NET MVC 5 project from bootstrap 3 to bootstrap 4 (the sass version).

After the migration, I got an error after the compilation of my

Answer 1

I uninstalled jpopper.cs and went to the Web.config file and added these lines of code

to deal with that validation error.