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" uri="" uuid="66D961F8-8EDE-11F1-A891-FB9C25D43659" encoding="&#x2713;" method="post">
    <field key="username" name="username" id="uuid-66D995B0-8EDE-11F1-A891-FB9C25D43659" display="Username" attrs="" value="" widget="text"/>
    <field id="uuid-66D9DD86-8EDE-11F1-A891-FB9C25D43659" key="password" display="Password" attrs="" name="password" widget="password"/>
    <field id="uuid-66DA258E-8EDE-11F1-A891-FB9C25D43659" attrs="" display="Login" name="submit" key="submit" value="" widget="submit"/>
  </form>
</response>