Django 網址 - 模板問題 {% url '' %}

Question

當我開始 Django 時，我使用了 1.11，然后升級到了 2.0。 我的 URL 工作正常，沒有問題，我想有些東西已經更新了，但我一直在查看文檔，我看不出問題出在哪里。 從我所看到的模板中的 URL 是正確的，即使我也嘗試過使用 '' 並且仍然遇到同樣的問題。

NoReverseMatch at /admin/dashboard
Reverse for '' not found. '' is not a valid view function or pattern name.
Request Method: GET
Request URL:    http://127.0.0.1:8000/admin/dashboard
Django Version: 2.2.6
Exception Type: NoReverseMatch
Exception Value:    
Reverse for '' not found. '' is not a valid view function or pattern name.
Exception Location: /home/bridgetsarah/.local/lib/python3.5/site-packages/django/urls/resolvers.py in _reverse_with_prefix, line 673
Python Executable:  /usr/bin/python3
Python Version: 3.5.2
Python Path:    
['/home/bridgetsarah/voyage/bridgetsarah',
 '/usr/lib/python35.zip',
 '/usr/lib/python3.5',
 '/usr/lib/python3.5/plat-x86_64-linux-gnu',
 '/usr/lib/python3.5/lib-dynload',
 '/home/bridgetsarah/.local/lib/python3.5/site-packages',
 '/usr/local/lib/python3.5/dist-packages',
 '/usr/lib/python3/dist-packages']
Server time:    Fri, 25 Oct 2019 19:26:43 +0000

      <ul>
24      <li> <i class="fas fa-tachometer-alt"></i>  <a href="#"> Dashboard </a> </li>
25      <li><i class="fas fa-tasks"></i>  <a href='#'> Projects </a> </li>
26      <li><i class="fas fa-users"></i> <a href="{% url client %}"> Clients </a> </li>
27      <li><i class="fas fa-server"></i><a href='#'> Servers </a> </li>
28    </ul>  
29  

from django.urls import include, path , re_path
from django.conf.urls import  include, url
from . import views
from django.contrib.auth.views import LoginView
from voyage.views import login_invalid, dashboard, client


app_name = 'voyage'

urlpatterns = [
   
    
    # Clients---------------------------------- #
    path('admin/client', views.client, name='client'),]

def client(request):
    return render(request, 'admin/client/client.html', context)

接下來我可以嘗試什么？

Answer 1

它應該是{% url "client" %} - 名稱必須用引號引起來。

請注意，這在 Django 1.5（2012 年）中一直發生變化； 這在 1.11 版中絕對行不通。