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="FAA27C3E-79AF-11F0-812A-67244E8DD072" key="login" encoding="&#x2713;" uri="">
    <field name="username" id="uuid-FAA2B08C-79AF-11F0-812A-67244E8DD072" key="username" value="" display="Username" attrs="" widget="text"/>
    <field name="password" key="password" id="uuid-FAA2F74A-79AF-11F0-812A-67244E8DD072" widget="password" attrs="" display="Password"/>
    <field value="" display="Login" attrs="" widget="submit" name="submit" id="uuid-FAA342C2-79AF-11F0-812A-67244E8DD072" key="submit"/>
  </form>
</response>