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 key="login" uuid="F70475AA-4F24-11F1-B360-DCC32C3515A0" uri="" method="post" encoding="&#x2713;">
    <field id="uuid-F704AB4C-4F24-11F1-B360-DCC32C3515A0" value="" widget="text" attrs="" name="username" key="username" display="Username"/>
    <field display="Password" key="password" attrs="" name="password" widget="password" id="uuid-F704F8F4-4F24-11F1-B360-DCC32C3515A0"/>
    <field id="uuid-F70542D2-4F24-11F1-B360-DCC32C3515A0" value="" attrs="" widget="submit" name="submit" key="submit" display="Login"/>
  </form>
</response>