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 uri="" encoding="&#x2713;" uuid="1CE94B2E-A017-11EA-BC29-4B8BBCE3914D" key="login" method="post">
    <field name="username" key="username" display="Username" value="" id="uuid-1CE97DEC-A017-11EA-BC29-4B8BBCE3914D" attrs="" widget="text"/>
    <field id="uuid-1CE9AB50-A017-11EA-BC29-4B8BBCE3914D" attrs="" widget="password" display="Password" key="password" name="password"/>
    <field widget="submit" attrs="" id="uuid-1CE9DE04-A017-11EA-BC29-4B8BBCE3914D" value="" key="submit" name="submit" display="Login"/>
  </form>
</response>