$ sudo apt-get update
$ sudo apt-get install libicapapi4 

libicapapi4 is installed in your system.

Make ensure the libicapapi4 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libicapapi4 *

You will get with libicapapi4 package name, version, architecture and description in a table

libicapapi4 package basic information: