Ubuntu 18.04 上开了一个项目，执行python manage.py runserver，无法启动，出现了这个问题。
感觉django 入门最难的地方在于环境配置，希望老师能够更加详细的讲解环境配置
sudo
加上 duso python manage.py runserver 解决?
jedi@jedi-VirtualBox:/var/www/html/test/django_test$ python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/sqlite3/base.py", line 199, in get_new_connection
conn = Database.connect(**conn_params)
sqlite3.OperationalError: unable to open database file
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner
self.run()
File "/usr/lib/python3.6/threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/utils/autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/core/management/commands/runserver.py", line 120, in inner_run
self.check_migrations()
File "/usr/local/lib/python3.6/dist-packages/django/core/management/base.py", line 458, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "/usr/local/lib/python3.6/dist-packages/django/db/migrations/executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "/usr/local/lib/python3.6/dist-packages/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/usr/local/lib/python3.6/dist-packages/django/db/migrations/loader.py", line 212, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/usr/local/lib/python3.6/dist-packages/django/db/migrations/recorder.py", line 76, in applied_migrations
if self.has_table():
File "/usr/local/lib/python3.6/dist-packages/django/db/migrations/recorder.py", line 56, in has_table
return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 260, in cursor
return self._cursor()
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 236, in _cursor
self.ensure_connection()
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.6/dist-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.6/dist-packages/django/utils/asyncio.py", line 24, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/django/db/backends/sqlite3/base.py", line 199, in get_new_connection
conn = Database.connect(**conn_params)
django.db.utils.OperationalError: unable to open database file