torchaudio==0.7.2 PackagesNotFoundError: The following packages are not available from current chann_warning conda.models.version:get_matcher(537): usi

问题：安装torchaudio==0.7.2报错

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

  - torchaudio==0.7.2
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安装torchaudio==0.7.2的详细报错日志：

(zsq) root@5q6mksee9v29j-0:~# conda install pytorch==1.7.1 torchvision==0.8.2 torchaudio==0.7.2 cudatoolkit=10.1
Collecting package metadata (current_repodata.json): | WARNING conda.models.version:get_matcher(537): Using .* with relational operator is superfluous and deprecated and will be removed in a future version of conda. Your spec was 1.7.1.*, but conda is ignoring the .* and treating it as 1.7.1
done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): \ WARNING conda.models.version:get_matcher(537): Using .* with relational operator is superfluous and deprecated and will be removed in a future version of conda. Your spec was 1.6.0.*, but conda is ignoring the .* and treating it as 1.6.0
WARNING conda.models.version:get_matcher(537): Using .* with relational operator is superfluous and deprecated and will be removed in a future version of conda. Your spec was 1.9.0.*, but conda is ignoring the .* and treating it as 1.9.0
WARNING conda.models.version:get_matcher(537): Using .* with relational operator is superfluous and deprecated and will be removed in a future version of conda. Your spec was 1.8.0.*, but conda is ignoring the .* and treating it as 1.8.0
done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

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

  - torchaudio==0.7.2

Current channels:

  - http://mirrors.aliyun.com/anaconda/pkgs/main/linux-64
  - http://mirrors.aliyun.com/anaconda/pkgs/main/noarch
  - http://mirrors.aliyun.com/anaconda/pkgs/r/linux-64
  - http://mirrors.aliyun.com/anaconda/pkgs/r/noarch
  - http://mirrors.aliyun.com/anaconda/pkgs/msys2/linux-64
  - http://mirrors.aliyun.com/anaconda/pkgs/msys2/noarch
  - http://mirrors.aliyun.com/anaconda/cloud/conda-forge/linux-64
  - http://mirrors.aliyun.com/anaconda/cloud/conda-forge/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.
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错误背景： 配置conda虚拟环境，想要安装：

conda install pytorch==1.7.1 torchvision==0.8.2 torchaudio==0.7.2 cudatoolkit=10.1
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解决方案：

(zsq) root@5q6mksee9v29j-0:~# conda install pytorch==1.7.1 torchvision==0.8.2 torchaudio==0.7.2 cudatoolkit=10.1 -c https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/linux-64
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