在我正在構(gòu)建的Django應(yīng)用程序中，我希望用戶創(chuàng)建過程如下：在用戶注冊時，如果有效，則重定向到創(chuàng)建LIST對象，如果有效，則重定向到將要用作儀表板的儀表板。剛創(chuàng)建的LIST對象。我的views.py如下：def user_signup(request):    if request.method == 'POST':        form = forms.UserSignupForm(data=request.POST)        if form.is_valid():            user = form.save()            g = Group.objects.get(name='test_group')            g.user_set.add(user)            # log user in            username = form.cleaned_data['username']            password = form.cleaned_data['password1']            user = authenticate(username=username, password=password)            login(request, user)            messages.success(request, u'Welcome to Social FollowUp')            return redirect('user_create')    else:        form = forms.UserSignupForm()    return TemplateResponse(request, 'user_signup.html', {        'form': form,    })@login_required@permission_required('')def user_create(request):    if request.method == 'POST':        list_form = forms.ListForm(request.POST)        if list_form.is_valid():            list_create = list_form.save()            messages.success(request, 'List {0} created'.format(list_create.list_id))            return redirect('user_dashboard')    else:        list_form = forms.ListForm()    return TemplateResponse(request, 'dashboard/create.html', {'list_form': list_form, })def user_dashboard(request, list_id):try:    list_id = models.List.objects.get(pk=list_id)except models.List.DoesNotExist:    raise Http404return TemplateResponse(request, 'dashboard/view.html', {'list_id': list_id})我對這些視圖的urls.py如下：url(r'user/signup/$', views.user_signup, name='user_signup'),url(r'u/dashboard/(?P<list_id>\d+)/$', views.user_dashboard, name='user_dashboard'),url(r'u/list/create/$', views.user_create, name='user_create'),當(dāng)我嘗試執(zhí)行該過程時，前兩個視圖可以正常工作。但是，當(dāng)我重定向到user_dashboard時，出現(xiàn)以下錯誤：Reverse for 'user_dashboard' with arguments '' and keyword arguments '{}' not found.