(base) C:\Users\lenovo>conda create -n tf2 python3.8
WARNING: The conda.compat module is deprecated and will be removed in a future release.
Collecting package metadata: failed
UnavailableInvalidChannel: The channel is not accessible or is invalid.
channel name: anaconda/pkgs/main/conda
channel url: https://mirrors.ustc.edu.cn/anaconda/pkgs/main/conda
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.