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;" uuid="9B1B7BCE-8BF3-11F1-9A6F-9B86400CC38E" uri="" method="post" key="login">
    <field id="uuid-9B1BA932-8BF3-11F1-9A6F-9B86400CC38E" name="username" key="username" value="" display="Username" widget="text" attrs=""/>
    <field key="password" display="Password" id="uuid-9B1BF572-8BF3-11F1-9A6F-9B86400CC38E" name="password" attrs="" widget="password"/>
    <field name="submit" id="uuid-9B1C3FD2-8BF3-11F1-9A6F-9B86400CC38E" value="" key="submit" display="Login" widget="submit" attrs=""/>
  </form>
</response>