开始了一个测试的app
执行runserver 命令的时候报错：
# python manage.py runserver
Performing system checks...
System check identified no issues (0 silenced).
Unhandled exception in thread started by <function wrapper at 0x2b4349afecf8>
Traceback (most recent call last):
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/core/management/commands/runserver.py", line 117, in inner_run
self.check_migrations()
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/core/management/commands/runserver.py", line 163, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/migrations/executor.py", line 20, in __init__
self.loader = MigrationLoader(self.connection)
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/migrations/loader.py", line 176, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/migrations/recorder.py", line 65, in applied_migrations
self.ensure_schema()
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/migrations/recorder.py", line 56, in ensure_schema
with self.connection.schema_editor() as editor:
File "/usr/local/python27/lib/python2.7/site-packages/Django-1.9.7-py2.7.egg/django/db/backends/sqlite3/schema.py", line 25, in __enter__
self._initial_pragma_fk = c.fetchone()[0]
TypeError: 'NoneType' object has no attribute '__getitem__'
