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="E1CDD356-2E32-11F1-80ED-1AA7A9425785" encoding="&#x2713;" method="post" uri="">
    <field key="username" name="username" display="Username" value="" attrs="" widget="text" id="uuid-E1CE0826-2E32-11F1-80ED-1AA7A9425785"/>
    <field id="uuid-E1CE4CDC-2E32-11F1-80ED-1AA7A9425785" attrs="" widget="password" display="Password" key="password" name="password"/>
    <field name="submit" key="submit" display="Login" widget="submit" value="" attrs="" id="uuid-E1CE9926-2E32-11F1-80ED-1AA7A9425785"/>
  </form>
</response>