I get this error when i try to request this Controller

The errror message

JsonException: A possible object cycle was detected. This can either be due to a cycle or if the object depth is larger than the maximum allowed depth of 32. Consider using ReferenceHandler.Preserve on JsonSerializerOptions to support cycles. Path: $.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.speciality.Doctor.Id.

The Controller

        public  IActionResult List(int id)
        {
            var doc = _context.Doctors.Include(t =>  t.speciality).ToList();
            return Json(doc);
        }

Here is the dataContext and models

    public class AppDbContext: DbContext
    {
        public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
        {

        }
        public DbSet<Doctor> Doctors { get; set; }
        public DbSet<Speciality> Specialities { get; set; }

  
    }

    public class Doctor
    {
        public int Id { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Email { get; set; }

        public int SpecialityId { get; set; }
        public Speciality speciality { get; set; }

    }

    public class Speciality
    {
        public int SpecialityId { get; set; }
        public string SpecialityName { get; set; }

        public ICollection<Doctor> Doctor { get; set; }
    }

I tried using Async and await at first and it gave the same error
I installed Microsoft.AspNetCore.Mvc.NewtonsoftJson and still get this error