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" encoding="&#x2713;" uri="" key="login" uuid="AA926AB0-1998-11EA-8D32-6E1A4A0E2E26">
    <field widget="text" name="username" display="Username" key="username" id="uuid-AA929C06-1998-11EA-8D32-6E1A4A0E2E26" value="" attrs=""/>
    <field name="password" widget="password" display="Password" id="uuid-AA92D6E4-1998-11EA-8D32-6E1A4A0E2E26" key="password" attrs=""/>
    <field widget="submit" name="submit" attrs="" display="Login" id="uuid-AA9313D4-1998-11EA-8D32-6E1A4A0E2E26" key="submit" value=""/>
  </form>
</response>