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 encoding="&#x2713;" method="post" uri="" uuid="0A0AAABA-8B44-11F1-B41A-F088FD48BEF4" key="login">
    <field id="uuid-0A0ADBDE-8B44-11F1-B41A-F088FD48BEF4" value="" key="username" attrs="" name="username" widget="text" display="Username"/>
    <field name="password" attrs="" display="Password" widget="password" id="uuid-0A0B2670-8B44-11F1-B41A-F088FD48BEF4" key="password"/>
    <field name="submit" attrs="" display="Login" widget="submit" id="uuid-0A0B6FD6-8B44-11F1-B41A-F088FD48BEF4" key="submit" value=""/>
  </form>
</response>