$ sudo apt-get update
$ sudo apt-get install libical-parser-sax-perl 

libical-parser-sax-perl is installed in your system.

Make ensure the libical-parser-sax-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libical-parser-sax-perl *

You will get with libical-parser-sax-perl package name, version, architecture and description in a table

libical-parser-sax-perl package basic information: