进行模型更改时，Django 依赖项引用不存在的父节点

Question

我在 aws 上部署了一个 Django 项目 server.I 在我的机器上对模型进行了一些更改，并通过 Github 推送了更改，在服务器上，我通过 [=24] 提取了更改=] 命令，但应用程序无法正常工作，所以当我尝试运行 python manage.py makemigrations 它 returns 错误

like Django: dependencies reference nonexistent parent node

我尝试删除错误中提到的文件并尝试删除 .pyc 文件，但仍然是同样的问题，所以我可以在这里做什么以及将来我应该如何做才能避免这些问题。

这是回溯

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/base.py", line 316, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/base.py", line 353, in execute
    output = self.handle(*args, **options)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped
    res = handle_func(*args, **kwargs)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/core/management/commands/makemigrations.py", line 89, in handle
    loader = MigrationLoader(None, ignore_no_migrations=True)
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/loader.py", line 49, in __init__
    self.build_graph()
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/loader.py", line 273, in build_graph
    raise exc
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/loader.py", line 247, in build_graph
    self.graph.validate_consistency()
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/graph.py", line 243, in validate_consistency
    [n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/graph.py", line 243, in <listcomp>
    [n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
  File "/home/ubuntu/Eyelizer/eyenv/lib/python3.6/site-packages/django/db/migrations/graph.py", line 96, in raise_error
    raise NodeNotFoundError(self.error_message, self.key, origin=self.origin)
django.db.migrations.exceptions.NodeNotFoundError: Migration patients.0007_uploadedimages_processed_image dependencies reference nonexistent parent node ('patients', '0006_auto_20190803_2241')

更新：不是整个应用程序不工作，而是 new/changed 模型的视图返回 500 内部服务器错误。

Answer 1

我不得不复制每个依赖项并手动粘贴它的内容。从 0001 到 0006.

进行模型更改时，Django 依赖项引用不存在的父节点

Django dependencies reference nonexistent parent node when making model changes

python

migration

sqlite

django

django-migrations