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="" key="login" encoding="&#x2713;" uuid="9E0B475C-CF63-11F1-8EBD-B9AB8D6E13F8" method="post">
    <field extra="" name="username" value="" key="username" display="Username" id="uuid-9E0B7952-CF63-11F1-8EBD-B9AB8D6E13F8" widget="text" attrs=""/>
    <field name="password" extra="" display="Password" id="uuid-9E0BC308-CF63-11F1-8EBD-B9AB8D6E13F8" attrs="" key="password" widget="password"/>
    <field id="uuid-9E0C0C32-CF63-11F1-8EBD-B9AB8D6E13F8" display="Login" attrs="" widget="submit" extra="" name="submit" value="" key="submit"/>
  </form>
</response>