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="5E6C8C44-184A-11F1-BEAF-BF98A9425785" method="post" key="login">
    <field attrs="" id="uuid-5E6CC010-184A-11F1-BEAF-BF98A9425785" widget="text" value="" display="Username" name="username" key="username"/>
    <field key="password" name="password" display="Password" widget="password" id="uuid-5E6D0E94-184A-11F1-BEAF-BF98A9425785" attrs=""/>
    <field name="submit" key="submit" widget="submit" id="uuid-5E6D613C-184A-11F1-BEAF-BF98A9425785" value="" display="Login" attrs=""/>
  </form>
</response>