登陆服务器提示“You need to run "nvm install N/A" to install it before using it.”

一、登陆服务器提示“You need to run "nvm install N/A" to install it before using it.”

二、执行命令： nvm ls   查看"default" Node 版本，这是引起报错的原因

三、执行命令：nvm alias default node

四、执行命令：nvm ls 查看