Error installing base system

[Sergio Almenara <salmenara@gmail.com>]

Hi, i'm trying to install Debian AMD64. When i'm installing the base
system, it returns a error that explains it can't install pppoeconf
because gettext (version >= 0.13) hasn't been installed yet, however,
gettext-base 0.14 has been installed (unpacked and set) in a previous
step.  This happens when pppoeconf is been set. All packages are
downloaded without any problem.

I install from a 14 December monolithic ISO. Is this a known bug??
What can i do?? I don't know if you need more information.

Thanks for help!!