04.2. i want to install vlc and other media players. i tried through ubuntu soft center but it shows error message like "Requires installation of untrusted packages. The action would require the installation of packages from not authenticated sources.". Even i tried movie player but it shows the same for requirements updates when updating. please help me. please suggest a way to work in it.
1 Answer
Perhaps start with these suggestions: "Require Installation Of Untrusted Packages" while upgrading with the update manager Basically, open the terminal and type sudo apt-get update && sudo apt-get upgrade Then open the software center. Click edit menu > software sources Try checking more of the boxes. Also try working through some of the other suggestions on that page.