安装TensorFlow时报错：PackagesNotFoundError: The following packages are not available from current channel

【报错信息】

PackagesNotFoundError: The following packages are not available from current channels:
  - tensorflow-gpu==2.4.1

【查看TensorFlow与Python版本的匹配信息】

【添加渠道】

conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/win-64
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/noarch
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
conda config --add channels https://repo.anaconda.com/pkgs/msys2/noarch
conda config --add channels https://conda.anaconda.org/conda-forge/noarch
conda config --add channels https://conda.anaconda.org/conda-forge/win-64
conda config --add channels https://repo.anaconda.com/pkgs/main/win-64
conda config --add channels https://repo.anaconda.com/pkgs/main/noarch
conda config --add channels https://repo.anaconda.com/pkgs/r/win-64
conda config --add channels https://repo.anaconda.com/pkgs/r/noarch
conda config --add channels https://repo.anaconda.com/pkgs/msys2/win-64

【查看当前渠道】

conda config --show channels

【结果】

【你要的TensorFlow版本在当前渠道种不一定有，查查看吧】

conda search tensorflow-gpu

【结果】

（刚开始安装2.2.0和2.4.1都没有成功）