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 key="login" method="post" uuid="6F082770-8640-11F1-A1C2-E454400CC38E" encoding="&#x2713;" uri="">
    <field widget="text" display="Username" key="username" name="username" attrs="" value="" id="uuid-6F0855D8-8640-11F1-A1C2-E454400CC38E"/>
    <field display="Password" widget="password" attrs="" key="password" name="password" id="uuid-6F089EDA-8640-11F1-A1C2-E454400CC38E"/>
    <field name="submit" key="submit" attrs="" widget="submit" display="Login" value="" id="uuid-6F08E9EE-8640-11F1-A1C2-E454400CC38E"/>
  </form>
</response>