$ sudo apt-get update
$ sudo apt-get install libwt-dbg 

libwt-dbg is installed in your system.

Make ensure the libwt-dbg package were installed using the commands given below,

$ sudo dpkg-query -l | grep libwt-dbg *

You will get with libwt-dbg package name, version, architecture and description in a table

libwt-dbg package basic information: