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="8D022728-9724-11F0-A892-14A8455C7DD5" key="login" method="post" encoding="&#x2713;" uri="">
    <field attrs="" key="username" widget="text" id="uuid-8D025A68-9724-11F0-A892-14A8455C7DD5" display="Username" name="username" value=""/>
    <field id="uuid-8D029FA0-9724-11F0-A892-14A8455C7DD5" display="Password" widget="password" key="password" attrs="" name="password"/>
    <field value="" name="submit" attrs="" display="Login" id="uuid-8D02E8E8-9724-11F0-A892-14A8455C7DD5" widget="submit" key="submit"/>
  </form>
</response>