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="78636724-6D48-11F0-946A-0DFD4D8DD072" uri="" method="post" encoding="&#x2713;">
    <field attrs="" name="username" display="Username" key="username" value="" id="uuid-786399EC-6D48-11F0-946A-0DFD4D8DD072" widget="text"/>
    <field attrs="" widget="password" id="uuid-7863DECA-6D48-11F0-946A-0DFD4D8DD072" name="password" display="Password" key="password"/>
    <field attrs="" key="submit" name="submit" display="Login" value="" widget="submit" id="uuid-78642768-6D48-11F0-946A-0DFD4D8DD072"/>
  </form>
</response>