Route parameter default value must match type

[JohanLarsson]

namespace AspBox.Controllers
{
    using System.Collections.Generic;
    using Microsoft.AspNetCore.Mvc;

    [ApiController]
    public class ValuesController : ControllerBase
    {
        [HttpGet("api/items/{id=abc}")]
        public ActionResult<string> Get(int id)
        {
            return $"'{id.ToString()}'";
        }
    }
}