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="" method="post" uuid="531366EA-911E-11F1-BA13-874B7BD1CDC2" key="login">
    <field id="uuid-5313A1A0-911E-11F1-BA13-874B7BD1CDC2" display="Username" key="username" name="username" value="" widget="text" attrs=""/>
    <field key="password" attrs="" widget="password" name="password" display="Password" id="uuid-5313EA84-911E-11F1-BA13-874B7BD1CDC2"/>
    <field id="uuid-531436C4-911E-11F1-BA13-874B7BD1CDC2" display="Login" name="submit" attrs="" widget="submit" value="" key="submit"/>
  </form>
</response>