An issue implementing migrations in the data layer

Question

Hello

I started developing a new c# WPF project. In a solution, I separated the layers as UI and Data. I placed database-related models and configurations in the data layer. Then, I gave the Data project as a reference to the ilse UI project.

The problem is this: when I try to migrate the database in the data project, "Your startup project 'GradeAnalyzer' doesn't reference Microsoft.EntityFrameworkCore.Design. This package is required for the Entity Framework Core Tools to work. I get the error "Ensure your startup project is correct, install the package, and try again". GradeAnalyzer UI project. When I looked at their references, I noticed that the packages mentioned were not there. What should I do to solve this problem? What are your suggestions?

Thanks.

Answer 1

Hi @fatih uyanık ，Welcome to Microsoft Q&A,

If you are missing Microsoft.EntityFrameworkCore.Design.

This nuget package needs to be added manually in nuget manager.

Typically you may need to add Microsoft.EntityFrameworkCore.SqlServer and Microsoft.EntityFrameworkCore.Tools using the same method.

Best Regards,

Jiale

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