[R] X11 problem

[Alexander Engelhardt]

Am 25.08.2011 15:05, schrieb carol white:
> both. But it worked for R-2-10.
>
> I added
>
> deb http://cran.ma.imperial.ac.uk/bin/linux/ubuntu lucid/
>
> into  /etc/apt/sources.list and ran
>
> apt-get update
>
>
> as root and got the following error message:
>
>
> W: GPG error: http://cran.ma.imperial.ac.uk lucid/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 51716619E084DAB9
> 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 3B22AB97AF1CDFA9

Hey there,

I had some problems with this just a few days ago.
You need to import that GPG key. See the section "secure APT" here:
http://cran.r-project.org/bin/linux/ubuntu/

Cheers,
  Alex