libnm-gtk-dev software package provides network management framework (dialogs development libraries), 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 libnm-gtk-dev
libnm-gtk-dev is installed in your system.
Make ensure the libnm-gtk-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libnm-gtk-dev *
You will get with libnm-gtk-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libnm-gtk-dev |
| Version | 0.9.8.8-0ubuntu4 |
| Description | network management framework (dialogs development libraries) |
| Sub Section | libdevel |