Jupyter Notebook、Windows 10 中的内核错误（Errno 13 Permission denied）

Question

我在 Windows 10 上安装了 Jupyter Notebook。我可以执行 jupyter notebook 命令。它打开并显示当前路径目录的列表。我还可以创建或打开一个笔记本。但是当我这样做时，右上角会出现内核错误。点击后会出现这个窗口：

启动内核失败

未处理的错误

Traceback (most recent call last):
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\web.py", line 1699, in _execute
    result = await result
  File "c:\users\lola\appdata\local\programs\python\python35\lib\asyncio\futures.py", line 383, in __iter__
    return self.result()  # May raise too.
  File "c:\users\lola\appdata\local\programs\python\python35\lib\asyncio\futures.py", line 294, in result
    raise self._exception
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
    type=mtype))
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "c:\users\lola\appdata\local\programs\python\python35\lib\asyncio\futures.py", line 294, in result
    raise self._exception
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
    kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "c:\users\lola\appdata\local\programs\python\python35\lib\asyncio\futures.py", line 294, in result
    raise self._exception
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
    self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "c:\users\lola\appdata\local\programs\python\python35\lib\asyncio\futures.py", line 294, in result
    raise self._exception
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\tornado\gen.py", line 209, in wrapper
    yielded = next(result)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
    self.write_connection_file()
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
    kernel_name=self.kernel_name
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "c:\users\lola\appdata\local\programs\python\python35\lib\contextlib.py", line 59, in __enter__
    return next(self.gen)
  File "c:\users\lola\appdata\local\programs\python\python35\lib\site-packages\jupyter_client\connect.py", line 102, in secure_write
    with os.fdopen(os.open(fname, open_flag, 0o600), mode) as f:
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Lola\\AppData\\Roaming\\jupyter\\runtime\\kernel-fd884f4e-8208-4b8e-9db2-c048f869e042.json'

我的文件中的代码没有以不同的颜色突出显示，当我运行它时没有任何反应。

我是编程新手，所以请尽量用简单的语言给出建议，详细描述每个步骤。

过去，我尝试过删除 Python，安装不同版本的 Python，安装 Anaconda。此外，为了使用 tensorflow，我创建了一个特殊的环境。但是这个错误保持不变。我怀疑问题是路径中的双反斜杠（“//”），但我完全不知道如何解决这个问题。但也许问题出在别的地方。

Answer 1

这里有同样的问题。对我有用的是以管理员身份运行 Anaconda Navigator。希望它也对你有用。

Answer 2

自上次更新 jupyter_client 后出现此问题。 您可以通过降级到最新版本来暂时解决问题。

conda install jupyter_client=5.3.1