我从https://pytorch.org/get-started/locally/获取安装命令。当我运行命令时： conda install pytorch torchvision torchaudio cudatoolkit=11.1.0 -c pytorch 我收到以下错误：

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

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

– cudatoolkit=11.1.0

Current channels: like

– https://conda.anaconda.org/pytorch/linux-64
– https://conda.anaconda.org/pytorch/noarch
– https://repo.anaconda.com/pkgs/main/linux-64
– https://repo.anaconda.com/pkgs/main/noarch
– https://repo.anaconda.com/pkgs/r/linux-64
– https://repo.anaconda.com/pkgs/r/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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然后我一一尝试了以下命令：

(base) eslam@scholar:~$ conda config –append channels conda-forge
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(base) eslam@scholar:~$ install cudatoolkit=11.1.0
install: missing destination file operand after ‘cudatoolkit=11.1.0’
Try ‘install –help’ for more information.
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(base) eslam@scholar:~$ conda install -c conda-forge cudatoolkit=11.1.0
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获得与上面相同的输出。

(base) eslam@scholar:~$ conda info –envs
# conda environments:
#
base * /home/eslam/anaconda3
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请问我该如何解决这个问题？
**********************************************************************************
您需要-c conda-forge用于最新安装。来自官方网站的命令是：

conda install pytorch torchvision torchaudio cudatoolkit=11.1 -c pytorch -c conda-forge
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https://pytorch.org

这对我有用。FWIW，截至 2021 年 5 月 21 日，pytorch.org 指令如下，但失败了。用“-c conda-forge”（上图）替换“-c nvidia”就可以了。注意：cudatoolkit 11.1 conda install pytorch torchvision torchaudio cudatoolkit=11.1 -c pytorch -c nvidia 需要“nvidia”通道 (2认同)