为什么我收到此错误'WSGIRequest'对象没有属性"kwargs"？

我正试图为我的帖子创建一个评论部分，但我不明白为什么会出现这个错误，这是代码，所以你可以查看它，我只会在视图中共享这个类

views.py

class AddCommentView(CreateView):
model = Comment
form_class = CommentForm
template_name = 'app1/add_comment.html'
def form_valid(self, form):
form.instance.post_id = self.kwargs['pk']
return super().form_valid(form)
#fields = '__all__'
success_url = reverse_lazy('index')

型号.py

from django.db import models
from django.contrib.auth.models import User
from django.urls import reverse
from datetime import datetime, date
from ckeditor.fields import RichTextField
# Create your models here.

class Category(models.Model):
name = models.CharField(max_length= 255)

def __str__(self):
return self.name 

def get_absolute_url(self):
return reverse('index')
class Profile(models.Model):
user = models.OneToOneField(User, null = True, on_delete=models.CASCADE)
bio = models.TextField()
profile_pic = models.ImageField(null = True, blank = True, upload_to = "images/profile/")
website_url = models.CharField(max_length= 255, blank = True, null = True)
facebook_url = models.CharField(max_length= 255, blank = True, null = True)
twitter_url = models.CharField(max_length= 255, blank = True, null = True)
instagram_url = models.CharField(max_length= 255, blank = True, null = True)
pinterest_url = models.CharField(max_length= 255, blank = True, null = True)
def __str__(self):
return str(self.user)
def get_absolute_url(self):
return reverse('index')


class Post(models.Model):
title = models.CharField(max_length= 255)
header_image = models.ImageField(null = True, blank = True, upload_to = 'images/')
author = models.ForeignKey(User, on_delete=models.CASCADE)
body = RichTextField(blank = True, null = True)
#body = models.TextField()
post_date = models.DateField(auto_now_add=True)
category = models.CharField(max_length=255, default='coding')
snippet = models.CharField(max_length=255)
likes = models.ManyToManyField(User, related_name = 'blog_posts')
def total_likes(self):
return self.likes.count()
def __str__(self):
return self.title + ' | ' + str(self.author)

def get_absolute_url(self):
return reverse('app1:article-detail', args=(self.id,))
class Comment(models.Model):
post = models.ForeignKey(Post, related_name="comments", on_delete=models.CASCADE)
name = models.CharField(max_length=255)
body = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
def __str__(self):
return '%s - %s' % (self.post.title, self.name)

模板

{% extends 'app1/base.html' %}
{% load static %}
{% block body_block %}

<h1>Add Blog Post</h1>
<br><br>
<div class="form-group">
<form action="" method="post">
{% csrf_token %}
{{form.as_p}}
<button class= "btn btn-secondary">Add Comment</button>
</form>
</div>

{% endblock %}

如果有人能解释问题所在，我将不胜感激，并提前表示感谢。