Hi, I’m trying to install pytorch 1.8.1 from conda by:
conda install -c pytorch pytorch

and it results:
Collecting package metadata (current_repodata.json): failed

UnavailableInvalidChannel: The channel is not accessible or is invalid.
  channel name: pytorch
  channel url: https://conda.anaconda.org/pytorch
  error code: 404

You will need to adjust your conda configuration to proceed.
Use `conda config --show channels` to view your configuration's current state,
and use `conda config --show-sources` to view config file locations.

conda config --show channels results:
channels:
  - defaults

conda config --show-sources results nothing

torchaudio is also not installed, but another packages, like librosa, is installed well.
What can I do?
macOS, miniconda 4.10.1.