Python&aconda系列：conda创建虚拟环境、切换环境 报错

一. conda create新建环境失败报错：An unexpected error has occurred. Conda has prepared the above report.

问题描述：

在Anaconda Prompt (anaconda3)中使用conda create命令新建环境报错如下：

(base) D:\OneDrive\桌面>conda create -n my_env python==3.8
Collecting package metadata (current_repodata.json): failed
# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT