$ sudo apt-get update
$ sudo apt-get install libnetworkmanagerqt1 

libnetworkmanagerqt1 is installed in your system.

Make ensure the libnetworkmanagerqt1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libnetworkmanagerqt1 *

You will get with libnetworkmanagerqt1 package name, version, architecture and description in a table

libnetworkmanagerqt1 package basic information: