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 uri="" encoding="&#x2713;" uuid="0D87DF98-8A48-11F1-9EF7-FBFEF5CBB814" method="post" key="login">
    <field id="uuid-0D8810BC-8A48-11F1-9EF7-FBFEF5CBB814" display="Username" value="" widget="text" attrs="" name="username" key="username"/>
    <field id="uuid-0D88546E-8A48-11F1-9EF7-FBFEF5CBB814" widget="password" display="Password" key="password" attrs="" name="password"/>
    <field id="uuid-0D889B86-8A48-11F1-9EF7-FBFEF5CBB814" display="Login" value="" widget="submit" attrs="" name="submit" key="submit"/>
  </form>
</response>