Python django 1.10.3在刷新后无法解析碱基

我有一个模型开发的游乐场

运行python manage.py makemigrations时，会显示错误

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/base.py", line 294, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/base.py", line 345, in execute
    output = self.handle(*args, **options)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 173, in handle
    migration_name=self.migration_name,
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 47, in changes
    changes = self._detect_changes(convert_apps, graph)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 132, in _detect_changes
    self.old_apps = self.from_state.concrete_apps
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 180, in concrete_apps
    self.apps = StateApps(self.real_apps, self.models, ignore_swappable=True)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 242, in __init__
    self.render_multiple(list(models.values()) + self.real_models)
  File "/home/IPP-HGW/dboe/anaconda2/lib/python2.7/site-packages/django/db/migrations/state.py", line 285, in render_multiple
    "for more" % (new_unrendered_models, get_docs_version())
django.db.migrations.exceptions.InvalidBasesError: Cannot resolve bases for [<ModelState: 'main.Component'>, <ModelState: 'main.MagneticConfig'>, <ModelState: 'main.NetStructure'>, <ModelState: 'main.Program'>, <ModelState: 'main.FilePath'>]
This can happen if you are inheriting models from an app with migrations (e.g. contrib.auth)
 in an app with no migrations; see https://docs.djangoproject.com/en/1.10/topics/migrations/#dependencies for more

尽管我试了很多次，但还是不断发生：

当然，python manage.py makemigration python manage.py迁移 从应用程序中删除所有表 python manage.py挤压迁移main 0001 清空models.py文件 在设置中取消应用程序的注释 读我能找到的关于那个的一切 刷新整个数据库python manage.py flush 有没有办法，怎么解决这个问题？谢谢 丹尼尔

11月29日编辑：

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添加堆栈跟踪

最后我得到了解决方案。我发现，迁移存储在应用程序文件夹中的一个文件中。您可以手动删除这些内容。当然，你需要非常小心

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看看你是否遇到了同样的问题。

如果你有一个错误，你应该发布整个事件，包括回溯。请提供完整的错误信息