Software Problems


I'm using the latest version of Ubuntu and i am having trouble installing software from the Ubuntu software center.

when i click the install button a message comes up that says "Requires installation of untrusted packages" when i click ok, the message closes and the installation stops

can anyone help ?




It's maybe "using a sledgehammer to crack a nut" but you could try the various commands for updating, upgrading, cleaning, fixing broken packages etc.

(Tip: You do not need to type commands into the Terminal. Highlight the command written on the web page. Move your cursor anywhere in the Terminal and either press CTRL+SHIFT+V together or press your mouse wheel or mouse middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!)

In the Terminal try the following commands one by one -
sudo apt-get update
sudo apt-get upgrade
sudo dpkg --configure -a
sudo apt-get -f install
sudo apt-get --fix-missing install
sudo apt-get clean
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get clean
sudo apt-get autoremove
sudo apt-get update

If it STILL doesn't work after all that then try a different package manager e.g. Synaptic Package Manager