Django-Xadmin后台首页添加小组件报错的解决方案

pip install xadmin-py3
pip install xadmin-py3

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'myapp01',
    'xadmin',
    'crispy_forms'
]

urlpatterns = [
    # path('admin/', admin.site.urls),
    path('api/',include("myapp01.urls")),
    path('xadmin/',xadmin.site.urls),
    url(r'^media/(?P<path>.*)$', serve, {'document_root': MEDIA_ROOT}, name='media'),
]

import xadmin
from myapp01.models import Student
class StudentAdmin(object):
    # 操作项功能显示位置设置，两个都为True则顶部和底部都显示
    actions_on_top = True
    actions_on_bottom = True
    # 操作项功能显示选中项的数目
    actions_selection_counter = True
    # 设置默认排序字段，负号表示降序排序
    ordering = ("id",) # 这个,不能省略
    list_display = ("id",'sname','gender','brith','isdelete')
    # list_display = ('api_name', 'api_id', 'source', 'area', 'is_active')
    list_per_page = 3
    empty_value_display = ' -无字段- '
    # 过滤器功能及能过滤的字段
    list_filter = ('isdelete',"gender")
    # 搜索功能及能实现搜索的字段
    search_fields = ('sname', 'gender')
    # menu_style = 'accordion'  # 左边导航栏样式
xadmin.site.register(Student,StudentAdmin) #

 python manage.py makemigrations # 将model生成迁移文件
 python manage.py migrate  # 将迁移文件生成数据表
 python manage.py createsuperuser #创建超级用户，登录后台使用
 python manage.py runserver 8002 # 启动项目