XSLT Error

Empty filename at /home/ubuntu/perl5/perlbrew/perls/perl-5.18.0/lib/site_perl/5.18.0/Chameleon5/Template/XSLT.pm line 575.

Response XML

<?xml version="1.0"?>
<response>
  <form uuid="CE593AD4-21C8-11F1-BF65-1287C27BCFD7" method="post" key="login" encoding="&#x2713;" uri="">
    <field display="Username" id="uuid-CE596FCC-21C8-11F1-BF65-1287C27BCFD7" name="username" value="" key="username" attrs="" widget="text"/>
    <field attrs="" key="password" widget="password" name="password" display="Password" id="uuid-CE59B41E-21C8-11F1-BF65-1287C27BCFD7"/>
    <field value="" key="submit" attrs="" widget="submit" display="Login" id="uuid-CE59FAAA-21C8-11F1-BF65-1287C27BCFD7" name="submit"/>
  </form>
</response>