Python 在sqlite总线中运行良好，因为我更改为postgresql，在/relation"；主应用程序“邮政”；不存在

我最近切换到了postgresql，我最终没有在终端中得到任何错误，我认为所有的事情都已经设置好了。但在浏览器中，我又犯了这个错误

ProgrammingError at /
relation "main_post" does not exist
LINE 1: ..."main_post"."image", "main_post"."thumbnail" FROM "main_post...

它在sqlite3中工作得很好，不知道为什么会出现这个错误。 这是回溯，有人能帮我找一下这个错误吗

Traceback:
File "/env/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/ebagu/main/views.py" in index
  63.               post_list = sorted(post_list, key=lambda x: x.get_score(), reverse=True)
File "/env/local/lib/python2.7/site-packages/django/db/models/query.py" in __iter__
  162.         self._fetch_all()
File "/env/local/lib/python2.7/site-packages/django/db/models/query.py" in _fetch_all
  965.             self._result_cache = list(self.iterator())
File "/env/local/lib/python2.7/site-packages/django/db/models/query.py" in iterator
  238.         results = compiler.execute_sql()
File "/env/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  840.             cursor.execute(sql, params)
File "/env/local/lib/python2.7/site-packages/django/db/backends/utils.py" in execute
  79.             return super(CursorDebugWrapper, self).execute(sql, params)
File "/env/local/lib/python2.7/site-packages/django/db/backends/utils.py" in execute
  64.                 return self.cursor.execute(sql, params)
File "/env/local/lib/python2.7/site-packages/django/db/utils.py" in __exit__
  97.                 six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/env/local/lib/python2.7/site-packages/django/db/backends/utils.py" in execute
  64.                 return self.cursor.execute(sql, params)

Exception Type: ProgrammingError at /
Exception Value: relation "main_post" does not exist
LINE 1: ..."main_post"."image", "main_post"."thumbnail" FROM "main_post...
                                                             ^

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你运行过python manage.py migrate吗？@DerekKwok当然，makemigrations，migrate，syncdb是我首先要做的事情did@winixxee检查drop db并重试的最佳方法…@RajaSimon我如何删除bdb？您是否尝试过

python manage.py makemigrations myapp

，然后

python manage.py migrate myapp

？您是否运行过

python manage.py migrate

？@derekwok当然，makemigrations，migrate，syncdb是我首先要做的事情did@winixxee检查drop db并重试的最佳方法…@RajaSimon我如何删除bdb？您是否尝试过

python manage.py makemigrations myapp

然后

python manage.py migrate myapp

？