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 key="login" uuid="BF6767C2-9161-11F1-9A49-08597BD1CDC2" uri="" encoding="&#x2713;" method="post">
    <field name="username" value="" attrs="" widget="text" key="username" id="uuid-BF67988C-9161-11F1-9A49-08597BD1CDC2" display="Username"/>
    <field display="Password" id="uuid-BF67E3C8-9161-11F1-9A49-08597BD1CDC2" widget="password" attrs="" name="password" key="password"/>
    <field name="submit" value="" widget="submit" attrs="" key="submit" id="uuid-BF682B44-9161-11F1-9A49-08597BD1CDC2" display="Login"/>
  </form>
</response>