Problem when trying to publish zh_TW technical notes

[Tiansworld]

Hello guys,
There is a problem when I try to publish zh_TW technical notes by using 
publican. Request is at here[1].

The error output is:
###
...
WARNING: Message missing from PO file, consider updating your POT and PO 
files.
"13"

	PO file 'zh-TW/Development-Libraries-PHP.po' not found! Using base XML!
	Merging zh-TW/Development-Libraries.po >> 
en-US/Development-Libraries.xml -> 
tmp/zh-TW/xml_tmp//Development-Libraries.xml

no element found at line 1, column 0, byte 0:

^
  at /usr/lib64/perl5/vendor_perl/XML/Parser.pm line 187
###

My procedure was as follows:
1. git clone git://git.fedorahosted.org/docs/technical-notes.git #ok
2. tx init && tx set --auto-remote 
https://fedora.transifex.net/projects/p/fedora-technical-notes/ #ok
3. tx pull -l zh_TW #ok
4. publican build --embedtoc --publish --formats 
epub,html,html-single,pdf --langs zh-TW    #error output

I checked there is not Development-Libraries-PHP.po available under 
zh-TW but that xml file exists in en-US directory.

Also there are only 58 xml files in en-US directory, but the translation 
po files are 72. Seems the git repository is too old.

Could anyone help me?

Many thanks.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=817969
-- 
Regards,

Tiansworld
Fedora Project Contributor