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私はDjangoチュートリアルを見てWebサイトを作っています。エラーがあります。 NoReverseMatch at/polls/ '詳細'のための逆が見つかりません。 'detail'は有効なビュー関数またはパターン名ではありません。それは、私が実際にエラーがラインになぜ起こるか0 base.htmlは（それがテンプレートフォルダにある）NoReverseMatch at/polls /なぜライン0でエラーが発生しますか？
{% load staticfiles %}
{% load bootstrap3 %}
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>Starter Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
<style type="text/css">
body {
padding-top: 50px;
}
</style>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="{% url 'index' %}">Tutorial</a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="{% block nav_polls %}{% endblock %}"><a href="{% url 'polls:index' %}">polls</a></li>
<li class=""><a href="{% url 'admin:index' %}">admin</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<div class="container">
{% bootstrap_messages messages %}
{% block contents %}{% endblock %}
</div><!-- /.container -->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
<script src="{% static 'js/bootstrap.min.js' %}"></script>
</body>
</html>
index.htmlを（それが世論調査である）であることを理解することはできません
Error during template rendering
In template /Users/xxx/djangostudy/templates/base.html, error at line 0
Reverse for 'detail' not found. 'detail' is not a valid view function or pattern name.
のように言われました
{% extends "polls/base.html" %}
{% load staticfiles %}
{% block contents %}
<table border="1" class="table table-striped">
<tr>
<th>質問内容</th>
<th>公開日</th>
<th></th>
</tr>
{% for question in questions %}
<tr>
<td>{{ question.question_text }}</td>
<td>{{ question.pub_date }}</td>
<td><a href="{% url 'polls:detail' question.pk %}">詳細画面へ</a></td>
</tr>
{% endfor %}
</table>
{% endblock contents %}
'詳細' はdetail.htmlを意味し、それは
<!DOCTYPE html>
<h1>{{ question.question_text }}</h1>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
<form action="{% url 'poll_vote' question.id %}" method="post">
{% csrf_token %}
{{ form }}
<input type="submit" value="Vote" />
</form>
</html>
私はindex.htmlがdetail.htmlを読み込めないことを意味すると思います。私はそうしたいのですが、私はそれを行う方法はありません。私はindex.htmlの0行目に何かを書きますか？世論調査で
views.pyは、世論調査で
from django.shortcuts import render
from django.urls import reverse_lazy
from django.utils.html import mark_safe
from .models import Question
from django.http import HttpResponse
from django.shortcuts import Http404
from django.shortcuts import get_object_or_404,redirect
from .models import Choice
from django.views.generic import TemplateView
from django.views.generic import DetailView
from django.views.generic import ListView
from .forms import MyForm
from .forms import VoteForm
from django.views.generic import FormView
from django.views.generic.detail import SingleObjectMixin
from django.shortcuts import resolve_url
# Create your views here.
def index(request):
return render(request,'polls/index.html',{
'questions': Question.objects.all(),
})
# def detail(request,pk):
# obj = get_object_or_404(Question,pk=pk)
# if request.method == "POST":
# form = VoteForm(question=obj,data=request.POST)
# if form.is_valid():
# form.vote()
# return redirect('polls:results',pk)
# else:
# form = VoteForm(question=obj)
# return render(request,'polls/detail.html',{
# 'form':form,
# 'question': obj,
# })
def vote(request,pk):
question = get_object_or_404(Question,pk=pk)
try:
selected_choice = question.choice_set.get(pk=request.POST['choice'])
except (KeyError,Choice.DoesNotExist):
return render(request,'poll/detail.html',{
'question':question,
'error_message':"You didn't select a choice",
})
else:
selected_choice.votes += 1
selected_choice.save()
return redirect('index')
return redirect('poll_results', pk)
# pass
def results(request,pk):
obj = get_object_or_404(Question,pk=pk)
return render(request,'polls/results.html',{
'question':obj,
})
class FormTest(FormView):
form_class = MyForm
template_name = 'polls/form.html'
success_url = reverse_lazy('polls:index')
form_test = FormTest.as_view()
class Detail(SingleObjectMixin,FormView):
model = Question
form_class = VoteForm
context_object_name = 'question'
template_name = 'polls/detail.html'
def get(self, request, *args, **kwargs):
self.object = self.get_object()
return super().post(request, *args, **kwargs)
def post(self, request, *args, **kwargs):
self.object = self.get_object()
return super().post(request, *args, **kwargs)
def get_form_kwargs(self):
kwargs = super().get_form_kwargs()
kwargs['question'] = self.object
return kwargs
def form_valid(self, form):
form.vote()
return super().form_valid(form)
def get_success_url(self):
return resolve_url('polls:results',self.kwargs['pk'])
detail = Detail.as_view()
urls.pyは
from django.conf.urls import url
from django.views.generic import TemplateView
from . import views
app_name="polls"
urlpatterns = [
url(r'(?P<pk>\d+)/$', views.detail, name='poll_detail'),
url(r'(?P<pk>\d+)/vote$', views.vote, name='poll_vote'),
url(r'(?P<pk>\d+)/results$', views.results, name='poll_results'),
url(r'^$',views.index,name='index'),
url(r'^form$', views.form_test),
]
ディレクトリです私はこの問題を解決するにはどうすればよい 
のですか？