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="8F361992-191E-11F1-B983-4D1F1ABF1312" uri="" encoding="&#x2713;" key="login" method="post">
    <field display="Username" id="uuid-8F364B88-191E-11F1-B983-4D1F1ABF1312" value="" attrs="" widget="text" name="username" key="username"/>
    <field widget="password" attrs="" key="password" name="password" display="Password" id="uuid-8F368FF8-191E-11F1-B983-4D1F1ABF1312"/>
    <field display="Login" id="uuid-8F36D896-191E-11F1-B983-4D1F1ABF1312" value="" attrs="" widget="submit" key="submit" name="submit"/>
  </form>
</response>