AttributeError: module 'xadmin' has no attribute 'site'

[kevinxzl]

Package Version

---

backports.csv 1.0.7
defusedxml 0.6.0
diff-match-patch 20181111
Django 2.2.4
django-crispy-forms 1.7.2
django-formtools 1.0
django-import-export 1.2.0
django-reversion 3.0.4
et-xmlfile 1.0.1
future 0.15.2
httplib2 0.9.2
jdcal 1.4.1
mysqlclient 1.4.2.post1 odfpy 1.4.0
openpyxl 2.6.3
Pillow 6.1.0
pip 19.0.3
pytz 2019.2
PyYAML 5.1.2
setuptools 40.8.0
six 1.10.0
sqlparse 0.3.0
tablib 0.13.0
xlrd 1.2.0
xlwt 1.3.0