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 encoding="&#x2713;" uri="" uuid="ED26D02A-7615-11F0-B710-5FF7F3489F51" key="login" method="post">
    <field attrs="" id="uuid-ED270018-7615-11F0-B710-5FF7F3489F51" key="username" display="Username" value="" name="username" widget="text"/>
    <field widget="password" name="password" attrs="" id="uuid-ED274582-7615-11F0-B710-5FF7F3489F51" key="password" display="Password"/>
    <field attrs="" key="submit" id="uuid-ED278F38-7615-11F0-B710-5FF7F3489F51" display="Login" value="" widget="submit" name="submit"/>
  </form>
</response>