Hi, I've got this error when I tried to create controller based on model ```csharp using System; using System.Collections.Generic; using Microsoft.EntityFrameworkCore; using Microsoft.EntityFrameworkCore.Metadata; namespace CafeApp.Models { public partial class CafeDbContext : DbContext { public CafeDbContext() { } public CafeDbContext(DbContextOptions<CafeDbContext> options) : base(options) { } public virtual DbSet<CustomerInfo> CustomerInfos { get; set; } = null!; protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<CustomerInfo>(entity => { entity.ToTable("CustomerInfo"); entity.Property(e => e.Id) .HasMaxLength(10) .IsFixedLength(); entity.Property(e => e.Email) .HasMaxLength(507) .IsFixedLength(); entity.Property(e => e.Name) .HasMaxLength(256) .IsFixedLength(); }); OnModelCreatingPartial(modelBuilder); } partial void OnModelCreatingPartial(ModelBuilder modelBuilder); } } ```