Comment 7 for bug 1009052

The following packages are installed during a Chinese installation:
hyphen-en-us
myspell-en-au
myspell-en-gb
myspell-en-za
mythes-en-us
openoffice.org-hyphenation
poppler-data
thunderbird-locale-en
thunderbird-locale-en-us
wbritish
cmap-adobe-gb1
fonts-arphic-uming
ibus-sunpinyin
ibus-table-wubi
libreoffice-help-zh-cn
libreoffice-l10n-zh-cn
poppler-data

Which causes the following dependency issue:
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:
 poppler-data : Breaks: cmap-adobe-gb1 (<= 0+20090930-2)
E: Unable to correct problems, you have held broken packages.

Moving to poppler