I need help installing some 3rd party programs

[torreydale]

After reboot, run Install Updates (Menu->Favorites->Install Updates), then try opening Lite Software.

[5150Jim]

Try this.  Open up a terminal (Menu->Accessories->Terminal).  Copy and paste in the following two lines, one at a time.

Code: [Select]

sudo rm /var/lib/apt/lists/* -vf
sudo apt-get update
Then try opening Lite Software again.

Okay I rebooted & tried again.
Still got an error

W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3BDAAC08614C4B38

[5150Jim]

After reboot, run Install Updates (Menu->Favorites->Install Updates), then try opening Lite Software.

Install Updates running!!!

[torreydale]

To remove the GPG public key error:

Code: [Select]

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3BDAAC08614C4B38
sudo apt-get update
AND

If you installed java using the aforementioned link http://forum.pcmech.com/threads/installing-java-in-linux-lite.231503/, you need to uninstall it using:

Code: [Select]

sudo apt-get purge oracle-java7-installer
sudo apt-get purge oracle-java7-set-default
sudo apt-get update
Then try installing Java via Lite Software.

[5150Jim]

To remove the GPG public key error:

Code: [Select]

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3BDAAC08614C4B38
sudo apt-get update
AND

If you installed java using the aforementioned link http://forum.pcmech.com/threads/installing-java-in-linux-lite.231503/, you need to uninstall it using:

Code: [Select]

sudo apt-get purge oracle-java7-installer
sudo apt-get purge oracle-java7-set-default
sudo apt-get update
Then try installing Java via Lite Software.

WOW!!! everything went smooth. I even installed Java via Lite Software like you said. Then I went back and installed  Dropbox, Music Player, Video Editing Software, VirtualBox & Webcam Software.
Thank you.
Now I just need to get my printer working.

I'm looking into this from a comment that was earlier in the topic.

And this looks like a good resource on your printer.  When they mention Synaptic Package Manager, you get to that in Linux Lite by going to Menu->System->Install/Remove Software.

http://ubuntuhandbook.org/index.php/2014/12/canon-driver-scangear-mp-ubuntu-14-04/

[N4RPS]

Hello!

As for my printer:
Canon MG5422

Sadly, Canon printers are NOT supported well under Linux, but I DID find this, which may help you:

https://sites.google.com/site/ericstringer/home/canon-mg5422-linux-setup

73 DE N4RPS
Rob