无法使用ASP发布数据.净MVC6

我是低mvc6和c#技能，我试图张贴，当我sumbit它什么都不做。

它不会带我到控制器，只是停留在页面上。

我有更多的页面，我不知道哪里有问题，如果需要我会添加其余的

这里my Controller:

using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using WebApplication1.ViewModels;
namespace WebApplication1.Controllers.Web
{
  public class AppController : Controller
  {
    public IActionResult Index()
    {
        return View();
    }
    public IActionResult Contact()
    {
        return View();
    }
    [HttpPost]
    public IActionResult Contact(ContactViewModel model)
    {
        return View();
    }
    public IActionResult About()
    {
        return View();
    }
  }
}

here my Contact:

@model WebApplication1.ViewModels.ContactViewModel
@{ 
ViewBag.Title = "Contact Page";
}
@section scripts{
<script src="~/lib/jquery-validation/dist/jquery.validate.js"></script>
<script src="~/lib/jquery-validation-        unobtrusive/jquery.validate.unobtrusive.min.js"></script>
 }
 <h2>Contact Me</h2>
  <form method="post">
    <span asp-validtaion-summary="ModelOnly"></span>
    <label asp-for="Name"></label>
   <input asp-for="Name"/>
   <span asp-validation-for="Name"></span>
   <label asp-for="Email"></label>
   <input  type="email" asp-for="Email"/>
   <span asp-validation-for="Email"></span>
  <label asp-for="Message"></label>
   <textarea cols="40" rows="4" asp-for="Message"></textarea>
   <span asp-validation-for="Message"></span>
   <div>
   <input type="submit" value="Send Message" />
   </div>
  </form>

<form asp-controller="App" asp-action="Contact">
    ...
</form>

<form action="/App/Contact" method="post">