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;" key="login" uri="" uuid="9405FC64-713C-11F1-8B20-2C23F9248A5F" method="post">
    <field display="Username" widget="text" attrs="" key="username" name="username" value="" id="uuid-94062D10-713C-11F1-8B20-2C23F9248A5F"/>
    <field display="Password" widget="password" attrs="" key="password" name="password" id="uuid-9406768A-713C-11F1-8B20-2C23F9248A5F"/>
    <field value="" id="uuid-9406C072-713C-11F1-8B20-2C23F9248A5F" key="submit" name="submit" widget="submit" attrs="" display="Login"/>
  </form>
</response>