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;" method="post" uuid="84419904-2004-11EA-A26A-D6DEC2841434" key="login">
    <field value="" widget="text" name="username" id="uuid-8441C7A8-2004-11EA-A26A-D6DEC2841434" key="username" attrs="" display="Username"/>
    <field display="Password" id="uuid-8442225C-2004-11EA-A26A-D6DEC2841434" key="password" attrs="" name="password" widget="password"/>
    <field display="Login" id="uuid-844259DE-2004-11EA-A26A-D6DEC2841434" key="submit" attrs="" name="submit" value="" widget="submit"/>
  </form>
</response>