خطا در ساخت بانک اطلاعاتی

سلام وقت بخیر خسته نباشید

من به هنگام اجرای دستور Add-Migration InitialDB به خطاهای زیر میخورم:

Your target project 'MyCrm.Web' doesn't match your migrations assembly 'MyCrm.Data'. Either change your target project or change your migrations assembly.

Change your migrations assembly by using DbContextOptionsBuilder. E.g. options.UseSqlServer(connection, b => b.MigrationsAssembly("MyCrm.Web")). By default, the migrations assembly is the assembly containing the DbContext.

Change your target project to the migrations project by using the Package Manager Console's Default project drop-down list, or by executing "dotnet ef" from the directory containing the migrations project.

ممنون میشم راهنمایی کنید.