qt3d5-private-dev software package provides Qt 5 3d private development files, 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-private-dev
qt3d5-private-dev is installed in your system.
Make ensure the qt3d5-private-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep qt3d5-private-dev *
You will get with qt3d5-private-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | qt3d5-private-dev |
| Version | 5.0~git20130731-0ubuntu5 |
| Description | Qt 5 3d private development files |
| Sub Section | libdevel |