Today is a sad day. First thing today I saw EF exception saying that \"The model backing the \'DomainContext\' context has changed since the database was created.\"
I had the same problem today. I added before the problem appeared a ViewModel, a View and Html.EnableClientValidation()
There was no Model changes at all! I did a dummy change, like @Guilleon advised, and created a working Migration... but it didn't help.
Then I restarted the Visual Studio and everything worked again. It must be a glitch