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> Hello
>
> I successfully run: (as indicated in the web site)
>
> sudo apt-key adv --keyserver keyserver.quickbuild.pearsoncomputing.net
> --recv-keys F5CFC95C
>
> And installed trinity, but after a while when running
>
>  sudo apt-get update
>
> Again I obtain:
>
> Reading package lists... Done
> W: GPG error: http://ppa.launchpad.net lucid Release: The following
> signatures couldn't be verified because the public key is not available:
> NO_PUBKEY 4DF9B28CA252A784
>
> Did the key change?
>
> regards
>
> Uwe Brauer

No, they key did not change.  Any key changes are broadcasted to all lists
including trinity-announce.

The error message you posted refers to ppa.launchpad.net; TDE is hosted on
ppa.quickbuild.pearsoncomputing.net.  Did you add a Launchpad PPA recently
without adding its signing key?

Tim
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