在服务器上添加夹具时出现反序列化错误（loaddata）

Posted 2023-02-23

【中文标题】在服务器上添加夹具时出现反序列化错误（loaddata）

【英文标题】：DeserializationError when adding fixture on server (loaddata)

【发布时间】：2021-05-03 20:23:07

【问题描述】：

我正在尝试将我的数据添加到我服务器中的数据库中。我在本地机器上使用完全相同的JSON 文件，它可以工作。但是当我在服务器上做同样的事情时，它给了我Deserialization Error。

JSON 文件太大，我无法在此处显示，但我确定没有错字。

我完成了所有迁移和数据库工作 - 我可以从管理仪表板添加对象。我该如何解决这个错误？

我得到的错误：

    Traceback (most recent call last):
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/serializers/json.py", line 69, in Deserializer
    objects = json.loads(stream_or_string)
  File "/usr/lib/python3.8/json/__init__.py", line 357, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.8/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.8/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/base.py", line 330, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/base.py", line 371, in execute
    output = self.handle(*args, **options)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/commands/loaddata.py", line 72, in handle
    self.loaddata(fixture_labels)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/commands/loaddata.py", line 114, in loaddata
    self.load_label(fixture_label)
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/management/commands/loaddata.py", line 172, in load_label
    for obj in objects:
  File "/home/testuser/myprojectt/myvenv/lib/python3.8/site-packages/django/core/serializers/json.py", line 74, in Deserializer
    raise DeserializationError() from exc
django.core.serializers.base.DeserializationError: Problem installing fixture '/home/testuser/myprojectt/myprojectt/articles/fixtures/article.json': 

一遍又一遍地检查JSON，但它仍然在本地工作，但在服务器上出现同样的错误。

【问题讨论】：

查看***.com/questions/16573332/…

【参考方案1】：

我在服务器上使用 Ubuntu。并且没有安装git-lfs。要解决这个问题：

使用sudo apt-get install git-lfs 安装它。

然后在项目目录上运行git lfs pull。

然后我设法按照自己的意愿处理JSON 数据。