关于conda install 和conda create 环境安装包的网络配置相关问题解决
问题：CondaHTTPError: HTTP 000 CONNECTION FAILED for url
1 问题主要描述：
conda env create -f environment.yaml python=3.8
Collecting package metadata (repodata.json): failed
CondaHTTPError: HTTP 000 CONNECTION FAILED for url https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/win-64/repodata.json
Elapsed: -An HTTP error occurred when trying to retrieve this URL. HTTP errors are often intermittent, and a simple retry will get you on your way. ‘https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/win-64’
2 换国内源的解决方案
Chatgpt的答复：
It seems that you might encounter issues with downloading the package metadata file (repodata.json) from the PyTorch repository when using Conda to create a new environment based on an environment.yaml file.
Based on the search results, this error could be due to various reasons, including internet connectivity issues, problems with the repository itself, or firewalls blocking the connection.
To resolve this issue, you could try the following steps:
Check your internet connectivity and retry the command.
Try changing the channel or repository URL. For example, you could use a different mirror or try using the following custom PyTorch channel: conda install -c pytorch pytorch.
Clear the cache by running conda clean -a and then try again.
Disable any firewalls that might be blocking the connection.
Try using a VPN or alternative network connection.
If none of these steps work, you could consider filing a bug report with the Conda or PyTorch teams, or asking for help on relevant forums or online communities.
I hope this helps! Let me know if you have any further questions or concerns.
感觉就是让我确认下源行不行，不行就换个源，我一想，觉得应该也是清华的源网络不通，就用下面两段代码去掉原来的源，然后换源
conda config --remove channels
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
conda config --set show_channel_urls yes
（2）中科大源
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/main/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge/
conda config --set show_channel_urls yes
（3）北京外国语大学源
conda config --add channels https://mirrors.bfsu.edu.cn/anaconda/pkgs/main
conda config --add channels https://mirrors.bfsu.edu.cn/anaconda/pkgs/free
conda config --add channels https://mirrors.bfsu.edu.cn/anaconda/cloud/conda-forge/
conda config --set show_channel_urls yes
（4）上海交大源
conda config --add channels https://mirrors.sjtug.sjtu.edu.cn/anaconda/pkgs/main/
conda config --add channels https://mirrors.sjtug.sjtu.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.sjtug.sjtu.edu.cn/anaconda/cloud/conda-forge/
conda config --set show_channel_urls yes
（5）豆瓣源
conda config --add channels https://pypi.doubanio.com/simple/
conda config --set show_channel_urls yes
3 与VPN联动
- 当希望与vpn联动时，应该删去原来增加的国内源，使得默认使用外网源。
- 比如，使用clash时，应关闭System Proxy选项，并选择外网通道。
**PS:**注意，VPN的购买和使用应遵守我国法律和相关要求，本博客只做技术分享，不指导任何非法违规行为，并对这些行为表示痛斥。
