try to install gcc-multilib, and failed. pls, help.. /////////////////////////////////// pi@NanoPi-NEO2:~$ sudo apt-get update Hit:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease Hit:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease Hit:3 http://ports.ubuntu.com/ubuntu-ports xe...

pi@NanoPi-NEO2:~$ sudo apt update Hit:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease Get:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease [109 kB] Get:3 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease [107 kB] Get:4 http://ports.ubuntu.com/ubuntu-ports xenial-...