locales / libc6 bug

vim@vim-Aspire-5738:~$ apt-cache policy locales;
locales:
  Installed: (none)
  Candidate: 2.13+git20120306-3
  Version table:
     2.13+git20120306-3 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status
vim@vim-Aspire-5738:~$  apt-cache policy libc6; sudo apt-get install locales
libc6:
  Installed: 2.17-92+b1
  Candidate: 2.17-92+b1
  Version table:
 *** 2.17-92+b1 0
        100 /var/lib/dpkg/status
     2.15-0ubuntu10.5 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
     2.15-0ubuntu10 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
[sudo] password for vim:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libc6 : Breaks: locales (< 2.17) but 2.13+git20120306-3 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
vim@vim-Aspire-5738:~$