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="6D96D070-1997-11EA-A533-6E1A4A0E2E26" key="login" encoding="&#x2713;" method="post" uri="">
    <field attrs="" key="username" id="uuid-6D974C8A-1997-11EA-A533-6E1A4A0E2E26" value="" display="Username" name="username" widget="text"/>
    <field name="password" widget="password" display="Password" key="password" id="uuid-6D978F38-1997-11EA-A533-6E1A4A0E2E26" attrs=""/>
    <field widget="submit" name="submit" value="" key="submit" id="uuid-6D980602-1997-11EA-A533-6E1A4A0E2E26" display="Login" attrs=""/>
  </form>
</response>