$ sudo apt-get update
$ sudo apt-get install libebackend-1.2-7 

libebackend-1.2-7 is installed in your system.

Make ensure the libebackend-1.2-7 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libebackend-1.2-7 *

You will get with libebackend-1.2-7 package name, version, architecture and description in a table

libebackend-1.2-7 package basic information: