How to resolve this error? can anyone please help me?

[sharath p]

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/

Django Version: 4.0.1
Python Version: 3.10.1
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'website']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']


Template error:
In template C:\Users\bhara\desktop\python\ecommerce-python-code\ecommerce-python-code\website\templates\website\navbar.html, error at line 30
   Reverse for 'placeOrder' with arguments '('',)' not found. 1 pattern(s) tried: ['placeOrder/(?P<i>[^/]+)/\\Z']
   20 :       <li class="nav-item active">
   21 :         <a class="nav-link" href="{% url 'home' %}">Home</a>
   22 :       </li>
   23 :       {% if request.user.is_staff %}
   24 :       </li>
   25 :       <li class="nav-item active">
   26 :         <a class="nav-link" href="{% url 'addProduct' %}">Add Product</a>
   27 :       </li>
   28 :       {% else %}
   29 :       <li class="nav-item">
   30 :         <a class="nav-link" href=" {% url 'placeOrder' request.user.customer.id %} ">Cart</a>
   31 :       </li>
   32 :       {% endif %}
   33 :       <li class="nav-item">
   34 :         <a class="nav-link" href="{% url 'login' %}">Login</a>
   35 :       </li>
   36 :     </ul>
   37 :   </div>
   38 :
   39 :   <span class="greet">Hello, {{request.user}}</span>
   40 :   <span ><a  class="greet" href="{% url 'logout' %}">Logout</a></span>


Traceback (most recent call last):
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\bhara\desktop\python\ecommerce-python-code\ecommerce-python-code\website\views.py", line 13, in home
    return render(request,'website/home.html',context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\shortcuts.py", line 19, in render
    content = loader.render_to_string(template_name, context, request, using=using)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\loader.py", line 62, in render_to_string
    return template.render(context, request)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\backends\django.py", line 61, in render
    return self.template.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 176, in render
    return self._render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 168, in _render
    return self.nodelist.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 977, in render
    return SafeString(''.join([
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 978, in <listcomp>
    node.render_annotated(context) for node in self
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 938, in render_annotated
    return self.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\loader_tags.py", line 153, in render
    return compiled_parent._render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 168, in _render
    return self.nodelist.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 977, in render
    return SafeString(''.join([
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 978, in <listcomp>
    node.render_annotated(context) for node in self
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 938, in render_annotated
    return self.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\loader_tags.py", line 201, in render
    return template.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 178, in render
    return self._render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 168, in _render
    return self.nodelist.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 977, in render
    return SafeString(''.join([
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 978, in <listcomp>
    node.render_annotated(context) for node in self
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 938, in render_annotated
    return self.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\defaulttags.py", line 295, in render
    return nodelist.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 977, in render
    return SafeString(''.join([
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 978, in <listcomp>
    node.render_annotated(context) for node in self
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\base.py", line 938, in render_annotated
    return self.render(context)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\template\defaulttags.py", line 442, in render
    url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\urls\base.py", line 86, in reverse
    return resolver._reverse_with_prefix(view, prefix, *args, **kwargs)
  File "C:\Users\bhara\AppData\Local\Programs\Python\Python310\lib\site-packages\django\urls\resolvers.py", line 729, in _reverse_with_prefix
    raise NoReverseMatch(msg)

Exception Type: NoReverseMatch at /
Exception Value: Reverse for 'placeOrder' with arguments '('',)' not found. 1 pattern(s) tried: ['placeOrder/(?P<i>[^/]+)/\\Z']

[Lakshyaraj Dash X-D 25]

Please share me your code privately so that I can solve your proy as soon as possible.

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[Luciano Martins]

Hello, basically where you are calling this route you have to pass something like this: {% url 'placeOrder' 1 %} and it is being called without nd like this: {% url 'placeOrder' %}, but as posted above it would be better to put the code for the person to analyze