Python django-bootstrap3参数“；“字段”；是否应包含有效的Django边界字段？

我正在使用django-bootstrap3在模板上呈现我的表单，我一直在努力寻找导致错误的原因

参数“field”应该包含有效的django BoundField

，当我尝试加载包含表单的页面时。我在下面附上了我的代码和错误。有人能告诉我我做错了什么吗

forms.py

class OrderForm(forms.Form):
    first_name = forms.CharField(max_length=50)
    last_name = forms.CharField(max_length=50)
    email = forms. EmailField(max_length=50)
    institution_name = forms.CharField(max_length=150)
    phone = forms.IntegerField()
    address = forms.CharField(max_length=100)
    city = forms.CharField(max_length=50)
    item = forms.CharField(max_length=100)
    serial_number = forms.CharField(max_length=50)
    problem = forms.CharField(widget=forms.Textarea(attrs—Crows':10,'cols':18,'style':'resize:none',  [placeholder':'Please define your problem here'l),label='Problem description')
    [placeholder':'Please define your problem here'l),label='Problem description')

views.py

模板

浏览器错误

控制台日志

---

这可能是因为某些字段可能丢失。请查看

您可以执行以下操作以查看哪些字段可用：

<form role="form" method="post">
     {% csrf_token %}
     {% bootstrap_form order_form %}
     {% buttons submit='OK' reset="Cancel" %}{% endbuttons %}
 </form>

{%csrf_令牌%}
{%bootstrap\u form order\u form%}
{%buttons submit='OK'reset=“Cancel”}{%endbuttons%}

---

然后尝试找出丢失字段的原因。

在终端中发布错误日志可能会有所帮助我已经编辑了问题并添加了错误日志

<form role="form" method="post">
     {% csrf_token %}
     {% bootstrap_form order_form %}
     {% buttons submit='OK' reset="Cancel" %}{% endbuttons %}
 </form>