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;" method="post" key="login" uuid="06FB9662-289E-11F1-88C8-42611ABF1312" uri="">
    <field id="uuid-06FBCE66-289E-11F1-88C8-42611ABF1312" display="Username" name="username" widget="text" key="username" attrs="" value=""/>
    <field id="uuid-06FC14F2-289E-11F1-88C8-42611ABF1312" display="Password" name="password" key="password" widget="password" attrs=""/>
    <field value="" attrs="" widget="submit" key="submit" name="submit" display="Login" id="uuid-06FC5D72-289E-11F1-88C8-42611ABF1312"/>
  </form>
</response>