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="C3C181A6-90BA-11F1-B8EE-EE60400CC38E" encoding="&#x2713;" method="post" key="login" uri="">
    <field name="username" attrs="" key="username" value="" widget="text" id="uuid-C3C1B7DE-90BA-11F1-B8EE-EE60400CC38E" display="Username"/>
    <field display="Password" widget="password" id="uuid-C3C1FB36-90BA-11F1-B8EE-EE60400CC38E" key="password" attrs="" name="password"/>
    <field name="submit" attrs="" key="submit" value="" id="uuid-C3C23EAC-90BA-11F1-B8EE-EE60400CC38E" widget="submit" display="Login"/>
  </form>
</response>