如遇 ①anaconda创建python3.6的虚拟环境失败 ②卡在Collecting package metadata (current_repodata.json): ③或报错： PackagesNotFoundError: The following packages are not available from current channels: python==3.6

详细报错日志：

D:\ProgramData\anaconda3\envs>conda create -n py36new python==3.6

Collecting package metadata (current_repodata.json): done

Solving environment: unsuccessful attempt using repodata from current_repodata.json, retrying with next repodata source.

Collecting package metadata (repodata.json): done

Solving environment: failed

PackagesNotFoundError: The following packages are not available from current channels:

- python==3.6

Current channels:

- https://repo.anaconda.com/pkgs/main/win-64

- https://repo.anaconda.com/pkgs/main/noarch

- https://repo.anaconda.com/pkgs/r/win-64

- https://repo.anaconda.com/pkgs/r/noarch

- https://repo.anaconda.com/pkgs/msys2/win-64

- https://repo.anaconda.com/pkgs/msys2/noarch

To search for alternate channels that may provide the conda package you're

looking for, navigate to

https://anaconda.org

and use the search bar at the top of the page.

考虑设置清华源，详见另一篇文章【python】Anaconda使用

设置源

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud//pytorch/

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/

# conda config --set show_channel_urls yes

# conda config --show-sources

移除源

conda config --remove channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/

设置完成后再重新创建虚拟环境：

conda create -n py36new python==3.6

#

# To activate this environment, use

#

# $ conda activate py36new

#

# To deactivate an active environment, use

#

# $ conda deactivate

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