我是Django框架的新手，正在学习教程。虽然当我尝试在detail.html中包含收藏夹的输入按钮时，我得到了这个错误：
呈现模板时出错
在模板C：\用户\leo8\Desktop\Lucas\c2view03\webdeve\templates\detail.html中，第8行出错
找不到参数为'（'，）'的'favorites'的反转。已尝试1个模式：
['webdev/（？P <Dreams_id>[0-9]+）/收藏夹/$']
以上是我的看法：

from .models import Dreams, Which
from django.shortcuts import render, get_object_or_404

app_name = 'webdeve'

def index(request):
    all_dreams = Dreams.objects.all()
    contexto = {'all_dreams': all_dreams}
    return render(request, 'index.html', contexto)

def detail(request, Dreams_id):
    #dream = Dreams.objects.get(pk=Dreams_id)
    dream = get_object_or_404(Dreams, pk=Dreams_id)
    return render(request, 'detail.html', {'dream': dream})

def favorites(request, Dreams_id):
    dream = get_object_or_404(Dreams, pk=Dreams_id)
    try:
        selected_which = dream.which_set.get(pk=request.POST['make'])
    except (KeyError, Which.DoesNotExist):
        return render(request, 'detail.html', {
            'dream': dream,
            'error_message': "no which selected"
        })
    else:
        selected_which.favorites = True
        selected_which.save()
        return render(request, 'detail.html', {'dream': dream})

和我的应用程序网址

from django.conf.urls import url
from webdeve import views

app_name = 'webdeve'

# Dreams

urlpatterns = [
    url(r'^$', views.index, name='index'),

# Dreams/detail

    url(r'^(?P<Dreams_id>[0-9]+)/$', views.detail, name='detail'),

# Dreams/detail/favoriteS

    url(r'^(?P<Dreams_id>[0-9]+)/favorites/$', views.favorites, name='favorites'),
]