Ubuntu Native Installation

[Bandreu1006]

So far ive managed to install Ubuntu 14.04 but i seem to be running into issues installing all of the packages necessary. The terminal said to install any "unmet dependencies" using sudo apt-get -f install but when I did that it only showed me a list of the dependencies it couldn't download.

The following extra packages will be installed:
  python-catkin-pkg python-catkin-pkg-modules python-rosdistro
  python-rosdistro-modules python-rospkg python-rospkg-modules
The following NEW packages will be installed:
  python-catkin-pkg python-catkin-pkg-modules python-rosdistro
  python-rosdistro-modules python-rospkg python-rospkg-modules
0 upgraded, 6 newly installed, 0 to remove and 690 not upgraded.
8 not fully installed or removed.

Errors were encountered while processing:
 /var/cache/apt/archives/python-catkin-pkg-modules_0.4.13-1_all.deb
 /var/cache/apt/archives/python-catkin-pkg_0.4.13-100_all.deb
 /var/cache/apt/archives/python-rospkg-modules_1.1.10-1_all.deb
 /var/cache/apt/archives/python-rospkg_1.1.10-100_all.deb
 /var/cache/apt/archives/python-rosdistro-modules_0.7.4-1_all.deb
 /var/cache/apt/archives/python-rosdistro_0.7.4-100_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

I've also tried installing each of these dependencies separately but then i receive errors about more unmet dependencies.

[dave816]

This is because the repositories or sources for software and updates on Ubuntu 14.04 from where these are downloaded are either deprecated or no longer active I tried it but they don't work