报错：CondaHTTPError: HTTP 404 NOT FOUND for url

参考：https://blog.youkuaiyun.com/weixin_41010198/article/details/88740150
conda新建环境的时候，出现问题：

Solving environment: failed
CondaHTTPError: HTTP 404 NOT FOUND for url https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/noarch/repodata.json 26

解决方案：

conda config --remove-key channels
conda config --append channels conda-forge --append channels bioconda --append channels defaults