针对django 2.0 xadmin 错误集锦
1.ModuleNotFoundError: No module named 'django.core.urlresolvers'
解决方法：将from django.core.urlresolvers import NoReverseMatch, reverse
改成
from django.urls import NoReverseMatch, reverse
2.TypeError: __init__() missing 1 required positional argument: 'on_delete'
解决方法：将user = models.ForeignKey(AUTH_USER_MODEL, verbose_name=_(u"user"))
改成
user = models.ForeignKey(AUTH_USER_MODEL, verbose_name=_(u"user")， on_delete=models.CASCADE)
即在外键值的后面加上 on_delete=models.CASCADE
3.TypeError: __init__() takes 1 positional argument but 6 were given
解决方法：将forms.Field.__init__(self, required, widget, label, initial, help_text, *args, **kwargs)
改成
forms.Field.__init__(self,*args, **kwargs)
4.ImportError: cannot import name 'QUERY_TERMS'
解决方法：将from django.db.models.sql.query import LOOKUP_SEP, QUERY_TERMS
改成
from django.db.models.sql.query import LOOKUP_SEP
from django.db.models.sql.constants import QUERY_TERMS
5.AttributeError: 'Settings' object has no attribute 'MIDDLEWARE_CLASSES'
解决方法：将if settings.LANGUAGES and 'django.middleware.locale.LocaleMiddleware' in settings.MIDDLEWARE_CLASSES:
改成
if settings.LANGUAGES and 'django.middleware.locale.LocaleMiddleware' in settings.MIDDLEWARE:
6.
django.db.utils.DataError: (1406, "Data too long for column 'gender' at row 1")
原因：
gender = models.CharField('性别',max_length=30,choices=(('male','男'),('female','女')),default='female')
可以看到设置的字符长度是5，可是female有6个字节，所以修改max_length=7
注：必须重新生成数据库
python manage.py makemigrations
python manage.py migrate
7.init() got an unexpected keyword argument 'current_app'
解决方法：这里面说是要激活中间件必须给他添加一个中间件class ，即MIDDLEWARE_CLASS
先把MIDDLEWARE
改成MIDDLEWARE_CLASS
8.AttributeError: 'WSGIRequest' object has no attribute 'user'
解决方法：MIDDLEWARE_CLASS = [
'django.middleware.security.SecurityMiddleware', 1
'django.contrib.sessions.middleware.SessionMiddleware', 2
'django.middleware.common.CommonMiddleware', 3
'django.middleware.csrf.CsrfViewMiddleware', 4
'django.contrib.auth.middleware.AuthenticationMiddleware',5
'django.contrib.messages.middleware.MessageMiddleware',6
'django.middleware.clickjacking.XFrameOptionsMiddleware',7
]
还未解决，有大佬帮忙吗？
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上面那个问题解决很麻烦，我估计解决不了，算了，接下来可以看我下一篇文章。直接django2.0版本的
