In my case, the only thing it says won't be installed is ros-electric-rx. If
I try to install it individually, it says it's already installed. If I
apt-get remove it, then try installing ros-electric-ros-full (or
install ros-electric-rx individually first), I get the same error as before.

On Fri, Oct 21, 2011 at 10:15 AM, Mac Mason <mac@cs.duke.edu> wrote:

> On Fri, Oct 21, 2011 at 9:33 AM, Dan Lazewatsky
> <lazewatskyd@cse.wustl.edu> wrote:
> > I'm having the same problem (albeit with a different unmet
> > dependency). No luck with a solution on
> > ros-answers:
> http://answers.ros.org/question/2580/broken-packages-installing-electric-full-on-natty
>
> The technique for solving this problem goes like this: pick the first
> thing it says won't be installed. Try to install just that package. If
> the problem re-occurs, recurse. Do this until you get to a package that
> provides a specific reason why it won't install, and then fix that
> problem.
>
> Iterate.
>
> Why apt doesn't provide better error-reporting in this case is beyond
> me.
>
>    --M
>
> --
> Julian "Mac" Mason      mac@cs.duke.edu      www.cs.duke.edu/~mac
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>