I have one project that I want to run my update-database against but I have my Models and Context in a separate project.
If I run enable-migration
This will only work in EF 6, but there was a release that added the -ContextProjectName parameter to the -enable-migrations command. By using this command you could do the following:
enable-migrations -ContextProjectName MyProject.MVC -StartUpProjectName MyProject.MVC
-ContextTypeName MyProject.MVC.MyContextFolder.MyContextName -ProjectName MyProject
This will add migrations to your MyProject project using the context in the MyProject.MVC.
You need to make sure that the project with the Migrations has a reference to the project with your Context, i.e., MyProject references MyProject.MVC