ASP.NET antiforgerytoken saying that the object is null

Question

I followed an exercise we did in class and I do not know why but @Html.AntiForgeryToken() is giving me the error

System.NullReferenceException: 'Object reference not set to an instance of an object.

<form method="post" action="\Files\Upload" enctype="multipart/form-data">
@Html.AntiForgeryToken()
    <input type="hidden" value="@Model.Id" name="id" />

    <label>Choose photo (,jpg\.png):</label>
    <input type="file" name="file" class="form-control" />
    <input type="submit" value="Upload Photo" />
</form>

Answer 1

Your forgot to return object in your action. Because your view is calling property @Model.Id

    public ActionResult Upload()
    {
        Test test = new Test();
        test.Id = 999;

        return View(test);
    }