public class CarContext:DbContext
    {
        //we are selecting the which database
        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(@"DESKTOP-KHCVNCN\SQL;Database=Cars;Trusted_Connection=true");
        }
        //which object in sql server match which object in project we are doint it
        public DbSet<Car> CarsInformations { get; set; }
        public DbSet<Brand> Brands { get; set; }
        public DbSet<Color> Colors { get; set; }
    }

我认为我不能连接到sql server这就是为什么它给出错误
但是一切都很好，我能做什么来解决这个问题？