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" key="login" uuid="247F5F88-75EE-11F0-8373-4BB462E0087B">
    <field name="username" widget="text" key="username" value="" id="uuid-247F9304-75EE-11F0-8373-4BB462E0087B" display="Username" attrs=""/>
    <field display="Password" attrs="" id="uuid-247FDA94-75EE-11F0-8373-4BB462E0087B" widget="password" key="password" name="password"/>
    <field key="submit" widget="submit" name="submit" attrs="" display="Login" value="" id="uuid-248022E2-75EE-11F0-8373-4BB462E0087B"/>
  </form>
</response>