qt3d5-dbg software package provides Qt 3D library debugging symbols, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install qt3d5-dbg
qt3d5-dbg is installed in your system.
Make ensure the qt3d5-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep qt3d5-dbg *
You will get with qt3d5-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Debug packages |
| Package | qt3d5-dbg |
| Version | 5.0~git20130731-0ubuntu5 |
| Description | Qt 3D library debugging symbols |
| Sub Section | debug |