libgranite2-dbg software package provides extension of GTK+ libraries (debugging symbols), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libgranite2-dbg
libgranite2-dbg is installed in your system.
Make ensure the libgranite2-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgranite2-dbg *
You will get with libgranite2-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Debug packages |
| Package | libgranite2-dbg |
| Version | 0.3.0-2~experimental1ubuntu2 |
| Description | extension of GTK+ libraries (debugging symbols) |
| Sub Section | debug |