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="09795E5C-4202-11F0-9CEE-36A7ED0FA296">
    <field display="Username" name="username" attrs="" key="username" id="uuid-0979914C-4202-11F0-9CEE-36A7ED0FA296" widget="text" value=""/>
    <field id="uuid-0979D904-4202-11F0-9CEE-36A7ED0FA296" key="password" attrs="" widget="password" display="Password" name="password"/>
    <field value="" attrs="" id="uuid-097A256C-4202-11F0-9CEE-36A7ED0FA296" key="submit" widget="submit" name="submit" display="Login"/>
  </form>
</response>