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="DAED7DEE-8F26-11F0-BA47-07593B611A6C" encoding="&#x2713;" method="post" key="login" uri="">
    <field name="username" id="uuid-DAEDB138-8F26-11F0-BA47-07593B611A6C" widget="text" value="" attrs="" key="username" display="Username"/>
    <field display="Password" key="password" attrs="" widget="password" id="uuid-DAEDF8A0-8F26-11F0-BA47-07593B611A6C" name="password"/>
    <field attrs="" display="Login" key="submit" id="uuid-DAEE41DE-8F26-11F0-BA47-07593B611A6C" name="submit" value="" widget="submit"/>
  </form>
</response>