$ sudo apt-get update
$ sudo apt-get install qtdeclarative5-qtmultimedia-to

qtdeclarative5-qtmultimedia-to is installed in your system.

Make ensure the qtdeclarative5-qtmultimedia-to package were installed using the commands given below,

$ sudo dpkg-query -l | grep qtdeclarative5-qtmultimedia-to*

You will get with qtdeclarative5-qtmultimedia-to package name, version, architecture and description in a table

qtdeclarative5-qtmultimedia-to package basic information: