Problem Your DbContext in a separate project – class library project. You are trying to add new migration and update database, and you are running into this error: Unable to create an object of type ‘CodingBlastDbContext’. Add an implementation of ‘IDesignTimeDbContextFactory’ to the project, or see https://go.microsoft.com/fwlink/?linkid=851728 for additional patterns supported at design time. […]
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