Since the default command Ali cloud version 8.x is installed Node
lead versions are 3.5.2 NPM has been installed, the upgrade is not life and death go up
Finally manually install the specified version to solve
wget -qO- https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get install -y nodejs
Install npm
apt-get install nodejs
View npm -v
root@iZs9kgd0x5xmhaZ:/# npm -v
6.9.0