我需要帮助来解决这个问题。
模板渲染时出错In template /*/dev/ecommerce/account/templates/account/registration/register.html，error at line 45
|as_crispy_field传递了一个无效或不存在的字段

35  
36              <h5> Purchase your favourite items today! </h5>
37  
38              <hr>
39              <br>
40  
41              <form method="POST" autocomplete="off">
42  
43                  {% csrf_token %}
44  
45                  {{form.username|as_crispy_field}}
46  
47                  <br> <br>
48  
49  
50                  {{form.email|as_crispy_field}}
51  
52                  <br> <br>
53  
54  
55                  {{form.password1|as_crispy_field}}