Error “Frame not in module.” in Xamarin.Forms - Android project

问题

Whenever it comes to this line, this error appears:

using (var client = new HttpClient())
{
    var json = await client.GetStringAsync("http://mvalivros.azurewebsites.net/api/livros");
    var livros = JsonConvert.DeserializeObject<List<Model.Livro>>(json);
    return livros;
}

A new tab appears in VS that says "Frame not in module."

It happens whenever the thread arrives at the using line.

Frame not in module

This is code complete...

using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace LivrosApp.ApiLivros
{
    public static class Api
    {
        public static async Task<IList<Model.Livro>> GetAsync()
        {
            using (var client = new HttpClient())
            {
                var json = await client.GetStringAsync("http://mvalivros.azurewebsites.net/api/livros");
                var livros = JsonConvert.DeserializeObject<List<Model.Livro>>(json);
                return livros;
            }
        }
    }
}

回答1:

Annoying when this happens!!
There is not one solution to this, have had this issue in past and few things you can try:

Change linking options -->Clean -->build
Change fast deployment --> build
Make sure mdb files are been generated and switch debug info generation to all/pdb files and rebuild
Exception settings -> Common Language Runtime Exceptions (should be ticked) If unticked tick the parent level so that everything below it is ticked
Tools -> Options -> Debugging -> General -> Enable Just My Code (Ticked)
If none of them works then try stepping over (F10) instead of step into (F11)

Hopefully atleast one solution works!!