Solving environment: failed with initial frozen solve. Retrying with flexible solve.

虚拟环境下载Spyder时报错。

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问题描述

老师说Spyder (anaconda3) 是 Anaconda 自带的，它只能使用虚拟环境里面的 Python 及软件包。最好不要用这个。安装 Spyder IDE, 在Anaconda命令窗口运行：conda install spyder时出现错误。

Collecting package metadata (current_repodata. json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata json, will retry with next repodata source.

原因分析：

镜像源问题

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解决方案：

将 .condarc 文件复制到 C:\用户<用户名> 目录下。

channels:
  - defaults
show_channel_urls: true
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
custom_channels:
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

如果只是临时使用清华镜像安装几个软件包，不想改全局镜像网站可以用以下命令
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple <软件包名字>