Windows 10 中的 conda 更新失败答案

【问题标题】：conda update failed in windows 10Windows 10 中的 conda 更新失败
【发布时间】：2016-11-19 06:49:47
【问题描述】：

在 Anaconda 以管理员身份提示 (Window 10 - 64 bit) 在此命令之后：conda update --all 我看到这些错误如下：我想更新和安装软件包，但是输入每个命令后都会出现这些错误。

conda update --all
Fetching package metadata ..........An unexpected error has occurred.
Please consider posting the following information to the
conda GitHub issue tracker at:

    https://github.com/conda/conda/issues



Current conda install:

               platform : win-64
          conda version : 4.2.9
       conda is private : False
      conda-env version : 4.2.9
    conda-build version : 2.0.2
         python version : 3.5.2.final.0
       requests version : 2.11.1
       root environment : D:\Anaconda3  (writable)
    default environment : D:\Anaconda3
       envs directories : D:\Anaconda3\envs
          package cache : D:\Anaconda3\pkgs
           channel URLs : http://www.lfd.uci.edu/~gohlke/pythonlibs/win-64/
                          http://www.lfd.uci.edu/~gohlke/pythonlibs/noarch/
                          http://github.com/scipy/scipy.git/win-64/
                          http://github.com/scipy/scipy.git/noarch/
                          https://repo.continuum.io/pkgs/free/win-64/
                          https://repo.continuum.io/pkgs/free/noarch/
                          https://repo.continuum.io/pkgs/pro/win-64/
                          https://repo.continuum.io/pkgs/pro/noarch/
                          https://repo.continuum.io/pkgs/msys2/win-64/
                          https://repo.continuum.io/pkgs/msys2/noarch/
            config file : C:\Users\Behnaz Eslami\.condarc
           offline mode : False



`$ D:\Anaconda3\Scripts\conda-script.py update --all`




    Traceback (most recent call last):
      File "D:\Anaconda3\lib\site-packages\conda\fetch.py", line 131, in fetch_repodata
        cache = json.loads(json_str)
      File "D:\Anaconda3\lib\json\__init__.py", line 319, in loads
        return _default_decoder.decode(s)
      File "D:\Anaconda3\lib\json\decoder.py", line 339, in decode
        obj, end = self.raw_decode(s, idx=_w(s, 0).end())
      File "D:\Anaconda3\lib\json\decoder.py", line 357, in raw_decode
        raise JSONDecodeError("Expecting value", s, err.value) from None
    json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "D:\Anaconda3\lib\site-packages\conda\exceptions.py", line 473, in conda_exception_handler
        return_value = func(*args, **kwargs)
      File "D:\Anaconda3\lib\site-packages\conda\cli\main.py", line 144, in _main
        exit_code = args.func(args, p)
      File "D:\Anaconda3\lib\site-packages\conda\cli\main_update.py", line 65, in execute
        install(args, parser, 'update')
      File "D:\Anaconda3\lib\site-packages\conda\cli\install.py", line 238, in install
        prefix=prefix)
      File "D:\Anaconda3\lib\site-packages\conda\api.py", line 24, in get_index
        index = fetch_index(channel_urls, use_cache=use_cache, unknown=unknown)
      File "D:\Anaconda3\lib\site-packages\conda\fetch.py", line 293, in fetch_index
        for url in urls]
      File "D:\Anaconda3\lib\site-packages\conda\fetch.py", line 293, in <listcomp>
        for url in urls]
      File "D:\Anaconda3\lib\site-packages\conda\fetch.py", line 70, in func
        res = f(*args, **kwargs)
      File "D:\Anaconda3\lib\site-packages\conda\fetch.py", line 137, in fetch_repodata
        .format(url, filename, e))
    conda.exceptions.CondaRuntimeError: Runtime error: Invalid index file: http://www.lfd.uci.edu/~gohlke/pythonlibs/win-64/repodata.json: Expecting value: line 1 column 1 (char 0)

我该如何解决这个问题？

【问题讨论】：

标签： python windows python-3.x anaconda conda

【解决方案1】：

尝试在命令提示符（管理员）上运行 conda update conda

或转到您的 anaconda 安装文件夹，right-click on "Anaconda3"，转到 Security，在 "Group or user names”点击Users，然后勾选“Allow”下的所有内容。

See this Image

【讨论】：

我在 2021 年安装 Miniconda3 时遇到了这个问题。接受的答案似乎过时或不适用。请帮忙？

【解决方案2】：

不要在普通终端窗口中运行或以管理员身份运行，而是打开 anaconda 终端。

在 Windows 10 搜索栏中，输入 cmd（不要按 Enter）
在结果中，您应该会看到一个标题为“Anaconda prompt (anaconda 3)”
在这个 anaconda 终端中输入您的命令，例如conda update conda

【讨论】：

【解决方案3】：

您需要在您的（环境变量）路径中添加以下引用：

<AnacondaInstallationDirectory>\condabin

将它添加到那里的任何其他现有 Anaconda 引用之前很重要，这样conda.exe 才能以正确的权限执行。

您还要确保您也拥有这些：

<AnacondaInstallationDirectory>\Library\bin
<AnacondaInstallationDirectory>\Scripts
<AnacondaInstallationDirectory>

【讨论】：