在命令提示符下运行服务器时出现 django.db.migrations.exceptions.NodeNotFoundError
[英]django.db.migrations.exceptions.NodeNotFoundError when running the server in command prompt
问题描述
i'm running with this error when running a server.
我在运行服务器时遇到此错误。 I changed my code directory name before and so earlier i faced the running problem as well.我之前更改了我的代码目录名称，所以早些时候我也遇到了运行问题。 However, it's fixed after changing the name as well in the settings.py, manage.py, and others that might have the old name.但是，在 settings.py、manage.py 和其他可能具有旧名称的文件中更改名称后，它也得到了修复。 I also install the Django, pillow, and psycopg2 again because it told me when trying to run the server in the command prompt.我还再次安装了 Django、枕头和 psycopg2，因为它在尝试在命令提示符下运行服务器时告诉我。 Now, i faced this problem.现在，我遇到了这个问题。 It says that.它这么说。
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 "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\core\management\commands\runserver.py", line 121, in inner_run
self.check_migrations()
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\core\management\base.py", line 459, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\loader.py", line 53, in __init__
self.build_graph()
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\loader.py", line 255, in build_graph
self.graph.validate_consistency()
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\graph.py", line 195, in validate_consistency
[n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\graph.py", line 195, in <listcomp>
[n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
File "C:\Users\karen\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\django\db\migrations\graph.py", line 58, in raise_error
raise NodeNotFoundError(self.error_message, self.key, origin=self.origin)
django.db.migrations.exceptions.NodeNotFoundError: Migration account.0011_auto_20201117_0027 dependencies reference nonexistent parent node ('auth', '0013_proxyuser')
Can someone help me to find where's the problem?有人可以帮我找出问题所在吗？ I am still a beginner and i really hope i can get a solution towards this error.我仍然是一个初学者，我真的希望我能找到解决这个错误的方法。 Thankyou in advance.先感谢您。
1 个解决方案
解决方案1
0 2020-11-27 05:13:13
This issue arose due to improper migrations.此问题是由于迁移不当引起的。 I would suggest you drop the migration file and try again.我建议您删除迁移文件并重试。
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