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I started using Ubuntu a few days ago, so please a little help would be cool. Whenever I try to install a package from the Ubuntu Software Center it gives me the following error for everything. Can anyone explain?

Requires installation of untrusted packages
This requires installing packages from unauthenticated sources.
Details 
libaacs0 libbluray1 libcddb2 libcrystalhd3 libdvbpsi7 libebml3 libiso9660-8 libmatroska5 libresid-builder0c2a libsdl-image1.2 libsdl1.2debian libsidplay2 libssh2-1 libtar0 libupnp6 libva-x11-1 libvcdinfo0 libwebp4 libxcb-keysyms1
  • try: sudo apt-get update .hope this'll help ! – Terminal Feb 12 '14 at 14:34
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    Go to Settings->Software & updates-> Other software->check the box "Independent" and "Canonical partners". – Pragatheeswaran Feb 12 '14 at 14:36
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Other wise you may try as

sudo apt-get install libaacs0 libbluray1 libcddb2 libcrystalhd3 libdvbpsi7 libebml3 libiso9660-8 libmatroska5 libresid-builder0c2a libsdl-image1.2 libsdl1.2debian libsidplay2 libssh2-1 libtar0 libupnp6 libva-x11-1 libvcdinfo0 libwebp4 libxcb-keysyms1

from your terminal and then the remaining installation you can continue either from terminal or from USC, :)

| improve this answer | |
  • wow.. so basically i install all of those? – user247473 Feb 13 '14 at 15:22
  • I'm getting that error even for standard Ubuntu updates..i mean for stuff like security updates? – user247473 Feb 13 '14 at 15:23

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