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;" uri="" method="post" key="login" uuid="92F5AC42-3CB3-11F1-851F-D76DA9425785">
    <field id="uuid-92F5E054-3CB3-11F1-851F-D76DA9425785" key="username" widget="text" value="" name="username" display="Username" attrs=""/>
    <field key="password" widget="password" id="uuid-92F62960-3CB3-11F1-851F-D76DA9425785" name="password" attrs="" display="Password"/>
    <field value="" name="submit" attrs="" display="Login" key="submit" widget="submit" id="uuid-92F67776-3CB3-11F1-851F-D76DA9425785"/>
  </form>
</response>