On Sat, 31 Mar 2012, Lanxin Ma wrote:
> It did not stop loading the demo record.  It printed the error on
> screen, also send a warning mail to admin.  

Perhaps you have not run:

   $ sudo -u www-data make -s install-pdfa-helper-files

which is tagged as `optional' in the INSTALL file, but without which
conversions to PDF/A would not work.

See also <http://invenio-software.org/ticket/197>.

Best regards
-- 
Tibor Simko

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