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 uuid="6CEFACFC-49AE-11F1-BC3C-7C968F49F76F" uri="" key="login" method="post" encoding="&#x2713;">
    <field display="Username" widget="text" value="" key="username" id="uuid-6CEFE26C-49AE-11F1-BC3C-7C968F49F76F" name="username" attrs=""/>
    <field key="password" id="uuid-6CF02C7C-49AE-11F1-BC3C-7C968F49F76F" attrs="" name="password" display="Password" widget="password"/>
    <field value="" display="Login" widget="submit" key="submit" id="uuid-6CF07916-49AE-11F1-BC3C-7C968F49F76F" name="submit" attrs=""/>
  </form>
</response>