我为什么要得到这些回溯？

Question

我目前正在试用ParlAi，方法是遵循文档的快速启动。我已经安装了ParlAi，目前正在使用“查看任务&训练模型”，但是当我运行代码parlai display_data --task babi:task10k:1时，我得到了这些回溯。

    Traceback (most recent call last):
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 584, in _build_master
    ws.require(__requires__)
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 901, in require
    needed = self.resolve(parse_requirements(requirements))
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 792, in resolve
    raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (urllib3 1.25.8 (c:\users\dean\anaconda3\lib\site-packages), Requirement.parse('urllib3~=1.25.9'), {'parlai'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Dean\anaconda3\Scripts\parlai-script.py", line 6, in <module>
    from pkg_resources import load_entry_point
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 3253, in <module>
    @_call_aside
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 3237, in _call_aside
    f(*args, **kwargs)
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 3266, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 586, in _build_master
    return cls._build_from_requirements(__requires__)
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 599, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
  File "C:\Users\Dean\anaconda3\lib\site-packages\pkg_resources\__init__.py", line 792, in resolve
    raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (Sphinx 2.4.0 (c:\users\dean\anaconda3\lib\site-packages), Requirement.parse('Sphinx>=3.0'), {'sphinx-autodoc-typehints'})

据我所知，当你遇到错误时，它通常会显示出来，但我看不出哪里有错误。我注意到在第一次回溯中，出现了一个VersionConflict。这是否意味着我安装了错误的ParlAi版本？

任何形式的帮助都将不胜感激。谢谢。

Answer 1

是的，这些回溯表示错误。这里的错误类型是pkg_resources.ContextualVersionConflict，这有点令人困惑，因为它们的名称中没有错误。对于这些跟踪块，最后一行是错误，第二行是引发错误的方式。

pkg_resources.ContextualVersionConflict: (urllib3 1.25.8 (c:\users\dean\anaconda3\lib\site-packages), Requirement.parse('urllib3~=1.25.9'), {'parlai'})

显示您的urllib3是1.25.8，但它需要在1.25.9到1.26之间。

pkg_resources.ContextualVersionConflict: (Sphinx 2.4.0 (c:\users\dean\anaconda3\lib\site-packages), Requirement.parse('Sphinx>=3.0'), {'sphinx-autodoc-typehints'})

意味着你的狮身人面像是2.4.0，但应该大于或等于3.0。