createsuperuser returns errors

[0x0c72]

Traceback (most recent call last):
File "manage.py", line 10, in
execute_from_command_line(sys.argv)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\core
\management__init__.py", line 338, in execute_from_command_line
utility.execute()
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\core
\management__init__.py", line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\core
\management\base.py", line 390, in run_from_argv
self.execute(_args, *_cmd_options)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\cont
rib\auth\management\commands\createsuperuser.py", line 50, in execute
return super(Command, self).execute(_args, *_options)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\core
\management\base.py", line 441, in execute
output = self.handle(_args, _options)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\cont
rib\auth\management\commands\createsuperuser.py", line 149, in handle
self.UserModel._default_manager.db_manager(database).create_superuser(_user_data)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\cont
rib\auth\models.py", line 191, in create_superuser
*_extra_fields)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\cont
rib\auth\models.py", line 182, in _create_user
user.save(using=self._db)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\base.py", line 710, in save
force_update=force_update, update_fields=update_fields)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\base.py", line 738, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\base.py", line 822, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\base.py", line 861, in _do_insert
using=using, raw=raw)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\manager.py", line 127, in manager_method
return getattr(self.get_queryset(), name)(_args, *_kwargs)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\query.py", line 920, in _insert
return query.get_compiler(using=using).execute_sql(return_id)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\m
odels\sql\compiler.py", line 963, in execute_sql
cursor.execute(sql, params)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\b
ackends\utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\b
ackends\utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\u
tils.py", line 97, in exit
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\b
ackends\utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "C:\Users\shenk\Documents\Programming\django_projects\envs\drf\lib\site-packages\django-1.8-py2.7.egg\django\db\b
ackends\sqlite3\base.py", line 318, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: auth_user.last_login may not be NULL

Where is user.last_login set? How can it be given a default value or set to be able to be NULL?

[pepe5]

i have the same error:

**c:\django-poll-app-master> python manage.py createsup**
...
    return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: auth_user.last_login may not be NULL