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 method="post" uuid="46E6B6C4-7436-11F1-9135-C17A242F1D8B" key="login" encoding="&#x2713;" uri="">
    <field name="username" widget="text" value="" key="username" display="Username" attrs="" id="uuid-46E6F47C-7436-11F1-9135-C17A242F1D8B"/>
    <field id="uuid-46E74328-7436-11F1-9135-C17A242F1D8B" name="password" widget="password" key="password" attrs="" display="Password"/>
    <field id="uuid-46E79A58-7436-11F1-9135-C17A242F1D8B" display="Login" attrs="" value="" key="submit" widget="submit" name="submit"/>
  </form>
</response>