Unpacking x11proto-core-dev (from .../x11proto-core-dev_7.0.20-1_all.deb) ...
Selecting previously deselected package libice-dev.
Unpacking libice-dev (from .../libice-dev_2%3a1.0.7-1ubuntu1_i386.deb) ...
Selecting previously deselected package xtrans-dev.
Unpacking xtrans-dev (from .../xtrans-dev_1.2.6-1_all.deb) ...
Preparing to replace tzdata 2011f-1 (using .../tzdata_2011g-0ubuntu0.11.04_all.deb) ...
Unpacking replacement tzdata ...
Setting up tzdata (2011g-0ubuntu0.11.04) ...
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 109.
dpkg: error processing tzdata (--configure):
 subprocess installed post-installation script returned error exit status 128