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 method="post" uuid="41DDC77A-9058-11F0-9080-A81E465C7DD5" uri="" encoding="&#x2713;" key="login">
    <field widget="text" attrs="" name="username" key="username" display="Username" id="uuid-41DDFC7C-9058-11F0-9080-A81E465C7DD5" value=""/>
    <field key="password" display="Password" id="uuid-41DE43D0-9058-11F0-9080-A81E465C7DD5" widget="password" attrs="" name="password"/>
    <field widget="submit" attrs="" name="submit" key="submit" id="uuid-41DE8C82-9058-11F0-9080-A81E465C7DD5" display="Login" value=""/>
  </form>
</response>