Ubuntu software-center won't work. When I try to install something I get:
"Software can't be installed or removed because the authentication service is not available. (org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.29'}): org.debian.apt.install-or-remove-packages"
Does anyone know of a solution please.
Many thanks
My spec: Acer c720, crouton, Ubuntu 13.10, unity
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