最近在安装python模块的时候出现错误提示：创建虚拟环境失败，错误代码如下图所示：
Collecting package metadata (): failed
ProxyError: Conda cannot proceed due to an error in your proxy configuration.
Check for typos and other configuration errors in any '.netrc' file in your home directory,
any environment variables ending in '_PROXY', and any other system-wide proxy
configuration settings.
解决方案：关闭vpn等代理软件，断开连接，解决问题！
Collecting package metadata (): done
Solving environment: done
