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.

进入上面网址搜索需要下载的包，找一个适合的版本就可以了！瞎搜什么解决方案，别人都写得清清楚楚了！😢
例如安装pycocotools