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" method="post" uuid="2B85F120-1997-11EA-985A-8C182D83AE63" encoding="&#x2713;" uri="">
    <field display="Username" id="uuid-2B86221C-1997-11EA-985A-8C182D83AE63" widget="text" value="" name="username" attrs="" key="username"/>
    <field display="Password" widget="password" id="uuid-2B86526E-1997-11EA-985A-8C182D83AE63" name="password" key="password" attrs=""/>
    <field value="" name="submit" key="submit" attrs="" widget="submit" id="uuid-2B868694-1997-11EA-985A-8C182D83AE63" display="Login"/>
  </form>
</response>