(VS2017) There was an error running the selected code generator: 'Sequence contains no elements'

Question

I\'m running through one of Microsoft\'s tutorials on MVC development and I\'m getting errors when trying to create various elements; Views, Controllers, etc.

The e

Answer 1

Error will occur if you had different instances of connection strings in your web.config

Comment out the other not needed or necessary connection strings tags then rebuild your solution. That would be all