Reverse for 'cart' not found. 'cart' is not a valid view function or pattern name

Using Django Mystery Errors
1

i am creating a simple add to cart program where one does not to have an account to buy something and i have run into an error. what could be the problem?
i have an error ‘’ File “C:\Users\Mukelabai\Desktop\EXPERIENCE\env\Lib\site-packages\django\urls\base.py”, line 88, in reverse
return resolver._reverse_with_prefix(view, prefix, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Users\Mukelabai\Desktop\EXPERIENCE\env\Lib\site-packages\django\urls\resolvers.py”, line 828, in _reverse_with_prefix
raise NoReverseMatch(msg)
django.urls.exceptions.NoReverseMatch: Reverse for ‘cart’ not found. ‘cart’ is not a valid view function or pattern name.
[02/Jul/2023 02:07:59] “GET /store/product/ HTTP/1.1” 500 124627
Not Found: /favicon.ico’’

{% load static %}

<!DOCTYPE html>
<html lang="en">
<head>

 <!-- SITE TITTLE -->
 <meta charset="utf-8">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>CL Experience</title>

 <!-- GOOGLE FONT -->
 <link href="https://fonts.googleapis.com/css2?family=Herr+Von+Muellerhoff&family=Montserrat:wght@400;700&family=Open+Sans:wght@300;400;600;700&display=swap" rel="stylesheet">

 <!-- PLUGINS CSS STYLE -->
 <link href="{% static 'plugins/bootstrap/css/bootstrap.min.css'%}" rel="stylesheet">
 <link href="{% static 'plugins/font-awesome/css/font-awesome.min.css'%}" rel="stylesheet">
 <link href="{% static 'plugins/animate/animate.css'%}" rel="stylesheet">

 <link href="{% static 'plugins/selectbox/select_option1.css'%}" rel="stylesheet">
 <link href="{% static 'plugins/owl-carousel/owl.carousel.min.css'%}" rel="stylesheet" media="screen">
 <link href="{% static 'plugins/fancybox/jquery.fancybox.min.css'%}" rel="stylesheet">
 
 <link href="{% static 'plugins/isotope/isotope.min.css' %}" rel="stylesheet">
 <link href="{% static 'plugins/datepicker/datepicker.min.css'%}" rel="stylesheet">
 

 <!-- CUSTOM CSS -->
 <link href="{% static 'css/style.css' %}" rel="stylesheet">
 <link href="{% static 'css/rtl.css' %}" rel="stylesheet" id="rtl_css">
 <link href="{% static 'css/default.css'%}" rel="stylesheet" id="option_color">
 <link href="{% static 'css/style.rtl.css'%}" rel="stylesheet">
 <link href="{% static 'css/color-option2.css'%}" rel="stylesheet">
 <link href="{% static 'css/color-option3.css' %}" rel="stylesheet">
 <link href="{% static 'css/color-option4.css' %}" rel="stylesheet">
 

 



 <!-- FAVICON -->
 <link href="{% static 'img/favicon.png' %}" rel="shortcut icon">

 <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
 <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
 <!--[if lt IE 9]>
 <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
 <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
 <![endif]-->

 <style>
   /* Paste this css to your style sheet file or under head tag */
   /* This only works with JavaScript,
   if it's not present, don't show loader */
   .no-js #loader {
     display: none;
   }

   .js #loader {
     display: block;
     position: absolute;
     left: 100px; top: 0;
   }

   .se-pre-con {
     position: fixed;
     left: 0px;
     top: 0px;
     width: 100%;
     height: 100%;
     z-index: 9999;
     background: url('/static/plugins/simple-pre-loader/images/loader-64x/Preloader_2.gif') center no-repeat #fff;
   }
 </style>

   <!--Include jQuery library --> 
 <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
   <script>
       $(window).on("load", function() {
           $(".se-pre-con").fadeOut("slow");
       });
   </script> 

</head>
<!--
<script>
 //paste this code under head tag or in a seperate js file.
 // Wait for window load
 $(window).load(function() {
   // Animate loader off screen
   $(".se-pre-con").fadeOut("slow");
 });
</script>
-->


<body id="body" class="body-wrapper static">
 <div class="se-pre-con"></div>
 <div class="main-wrapper">
   <!-- HEADER -->
   <header id="pageTop" class="header">

     <!-- TOP INFO BAR -->
     <div class="top-info-bar">
       <div class="container">
         <div class="top-bar-right">
           <ul class="list-inline">
             <li><a href=""><i class="fa fa-envelope" aria-hidden="true"></i> info@cl.com</a></li>
             <li><span><i class="fa fa-phone" aria-hidden="true"></i>+1 234 567 8900</span></li>
           </ul>
         </div>
       </div>
     </div>

     <!-- NAVBAR-->
     <nav class="navbar navbar-expand-md main-nav navbar-light">
       <div class="container">
    
         <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
         </button>

         <a class="navbar-brand" href="index.html"><img class="lazyestload" data-src="{% static 'img/logo.png'%}" src="{% static 'img/logo.png'%}" alt="logo"></a>
 
         <div class="collapse navbar-collapse" id="navbarSupportedContent">
           <ul class="navbar-nav ml-auto">
             <li class="nav-item active">
               <a class="nav-link" href="{% url 'home'%}">Home <span class="sr-only">(current)</span></a>
             </li>
 
             <li class="nav-item dropdown ">
               <a class="nav-link dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" href="javascript:void(0)">Services</a>
               <ul class="dropdown-menu">
                 <li><a href="{% url 'services'%}">Services</a></li>
                 <!--<li><a href="single-service.html">Service Details</a></li> -->
               </ul>
             </li>
             <li class=" dropdown megaDropMenu nav-item " >
               <a class="nav-link dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" href="javascript:void(0)">Store</a>

               <ul class="row dropdown-menu justify-content-md-between">
                 <li class="">
                   <ul class="list-unstyled">
                     <li><a href="product-right-sidebar.html">Product Right Sidebar</a></li>
                     <li><a href="product-left-sidebar.html">Product Left Sidebar</a></li>
                     <li><a href="product-3col.html">Product 3 Col</a></li>
                     <li><a href="{% url 'store:product' %}">Product 4 Col</a></li>
                     <li><a href="single-product.html">Single product</a></li>
                   </ul>
                 </li>

                 <!-- 
                 <li class="">
                   <ul class="list-unstyled">
                     <li><a href="user-dashboard.html">User Dashboard</a></li>
                     <li><a href="user-profile.html">User Profile</a></li>
                     <li><a href="address.html">Address</a></li>
                     <li><a href="all-order.html">All Order</a></li>
                     <li><a href="wishlist.html">Wishlist</a></li>
                   </ul>
                 </li>
                   -->

                   <li class="">
                     <ul class="list-unstyled">
                       <li><a href="{% url 'store:cart' 1 %}">Cart</a></li>
                       <li><a href="{% url 'store:checkout' %}">Checkout</a></li>
                       <li><a href="{% url 'success_view' %}">Confirmation</a></li>
                       <li><a href="{% url 'pricing' %}">Price table</a></li>
                     </ul>
                   </li>

                 <li class="">
                   <ul class="list-unstyled">
                     <li><a href="javascript:void(0)" class="px-md-0"><img class="img-responsive lazyestload" data-src="{% static 'img/home/pricing-1.jpg' %}" src="{% static 'img/home/pricing-1.jpg' %}" alt="logo"></a></li>
                   </ul>
                 </li>
               </ul>
             </li>
 
             <li class="nav-item dropdown ">
               <a class="nav-link dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" href="javascript:void(0)">Pages</a>

               <ul class="dropdown-menu">
                 <li><a href="{% url 'about' %}">About Us</a></li>
                <!-- <li><a href="contact.html">Contact Us</a></li>
                 <li><a href="appointment.html">Appointment</a></li> -->
                 <li class="dropdown">
                  <a href="javascript:void(0)" class="dropdown-toggle" class="dropdown-toggle" data-toggle="dropdown" role="button" aoria-haspopup="true" aria-expanded="false">Team</a>

                   <ul class="dropdown-menu submenu">
                     <li><a href="member.html">Our Team</a></li>
                 <!--<li><a href="single-member-profile.html">Single Member</a></li>-->
                   </ul>
                 </li>

                 <li class="dropdown">
                   <a href="javascript:void(0)" class="dropdown-toggle" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Gallery</a>

                   <ul class="dropdown-menu submenu">
                     <li><a href="gallery-v1.html">Gallery 3 Col</a></li>
                     <li><a href="gallery-v2.html">Gallery 4 Col</a></li>
                   </ul>
                 </li>
<!--
                 <li><a href="login-signup.html">Login SignUp</a></li>

                 <li><a href="404.html">404 Not Found</a></li>

                 <li><a href="coming-soon.html">Coming Soon</a></li>
               </ul>
             </li>
           -->
             <li class="nav-item dropdown ">
               <a class="nav-link dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" href="javascript:void(0)">Blog</a>

               <ul class="dropdown-menu menu-xl-right">
                 <li class="dropdown">
                   <a href="javascript:void(0)" class="dropdown-toggle" class="dropdown-toggle" data-toggle="dropdown" role="button" aro9ia-haspopup="true" aria-expanded="false">Blog</a>
                   <ul class="dropdown-menu submenu">
                     <li><a href="blog-right-sidebar.html">Right Sidebar</a></li>
                     <li><a href="blog-left-sidebar.html">Left Sidebar</a></li>
                     <li><a href="blog-fullwidth.html">Fullwidth</a></li>
                   </ul>
                 </li>

                 <li class="dropdown">
                   <a href="javascript:void(0)" class="dropdown-toggle" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Single Blog</a>
                   <ul class="dropdown-menu submenu">
                     <li><a href="blog-single-right-sidebar.html">Right Sidebar</a></li>
                     <li><a href="blog-single-left-sidebar.html">Left Sidebar</a></li>
                     <li><a href="blog-single-fullwidth.html">Fullwidth</a></li>
                   </ul>
                 </li>
               </ul>
             </li>
 
             <li class="nav-item dropdown ">
               <a class="nav-link dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" href="javascript:void(0)">Components</a>
               <ul class="dropdown-menu menu-right">
                 <li><a href="tabs-pagination.html">Tab &amp; Pagination</a></li>
                 <li><a href="accrodion.html">Accrodions</a></li>
                 <li><a href="buttons-alerts.html">Buttons &amp; Alerts</a></li>
               </ul>
             </li>
           </ul>
         </div>

         <div class="cart_btn">
           <a href="cart.html"><i class="fa fa-shopping-basket" aria-hidden="true"></i><span class="badge">0</span></a>
         </div>
         <!-- header search ends-->
       </div>
     </nav>
     
   </header>



<!-- PRODUCT SECTION -->
   <section class="container-fluid clearfix productArea">
     <div class="container">

           <div class="row">
             <div class="col-md-6 col-lg-4 col-xl-3">
               <div class="produtSingle">
                 <div class="produtImage">
                   <img src="{% static 'img/products/product-1.jpg' %}" data-src="{% static 'img/products/product-1.jpg' %}" alt="Image Product" class="img-responsive lazyestload">
                   <div class="productMask">
                     <ul class="list-inline productOption">
                       <li class="favourite-icon">
                         <a class="icon" href="javascript:void(0)">
                           <i class="fa fa-heart" aria-hidden="true"></i>
                         </a>
                       </li>

                       <li><a href="{% url 'cart' %}"><i class="fa fa-shopping-cart" aria-hidden="true"></i></a></li>

                       <li>
                         <a href="javascript:void(0)" data-morphing id="morphing" data-src="#morphing-content">
                           <i class="fa fa-search" aria-hidden="true"></i>
                         </a>
                       </li>
                     </ul>
                   </div>
                 </div>
                 <div class="productCaption">
                   <h2><a href="single-product.html">Handmade Soap</a></h2>
                   <h3>$19</h3>
                 </div>
               </div>
             </div>
my views
from django import views
from django.urls import path
from .views import *




urlpatterns = [
   path('cart/<int:product_id>/', cart, name='cart'),
   path('checkout/', checkout, name='checkout'),
   path('product/', product, name='product'),
   path('view_cart/', view_cart, name='view_cart'),
]

my models
from django.db import models

class Product(models.Model):
   name = models.CharField(max_length=100)
   price = models.DecimalField(max_digits=8, decimal_places=2)
   description = models.TextField()
   quantity = models.PositiveIntegerField(default=1)

   def __str__(self):
       return self.name
my urls
from django import views
from django.urls import path
from .views import *




urlpatterns = [
   path('cart/<int:product_id>/', cart, name='cart'),
   path('checkout/', checkout, name='checkout'),
   path('product/', product, name='product'),
   path('view_cart/', view_cart, name='view_cart'),
]
2

What does the definition look like for the url named cart in the urls.py file?

3

sorry here are my views

from django.shortcuts import redirect, render
from .models import Product


def product(request):
    products = Product.objects.all()
    return render(request, 'product-4col.html', {'products': products})

def cart(request, product_id):
    product = Product.objects.get(pk=product_id)
    cart = request.session.get('cart', {})
    cart_item = cart.get(product_id)
    
    if cart_item:
        cart_item['quantity'] += 1
    else:
        cart_item = {'quantity': 1, 'product': product}
    
    cart[product_id] = cart_item
    request.session['cart'] = cart
    return redirect('store:cart')



def view_cart(request):
    cart = request.session.get('cart', {})
    cart_items = []
    total_price = 0

    for product_id, cart_item in cart.items():
        product = Product.objects.get(pk=product_id)
        quantity = cart_item['quantity']
        total_price += product.price * quantity
        cart_items.append({'product': product, 'quantity': quantity})

    return render(request, 'cart.html', {'cart_items': cart_items, 'total_price': total_price})


def checkout(request):
    if request.method == 'POST':
        request.session['cart'] = {}
        return redirect('checkout_complete')
    return render(request, 'checkout.html')
my urls
from django import views
from django.urls import path
from .views import *




urlpatterns = [
    path('cart/<int:product_id>/', cart, name='cart'),
    path('checkout/', checkout, name='checkout'),
    path('product/', product, name='product'),
    path('view_cart/', view_cart, name='view_cart'),
]

my models
from django.db import models

class Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=8, decimal_places=2)
    description = models.TextField()
    quantity = models.PositiveIntegerField(default=1)

    def __str__(self):
        return self.name
from django.db import models

class Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=8, decimal_places=2)
    description = models.TextField()
    quantity = models.PositiveIntegerField(default=1)

    def __str__(self):
        return self.name