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" uuid="6BD58F46-46C8-11F1-ADD5-B9F725D43659" encoding="&#x2713;" method="post" uri="">
    <field attrs="" widget="text" key="username" name="username" id="uuid-6BD5C114-46C8-11F1-ADD5-B9F725D43659" value="" display="Username"/>
    <field key="password" attrs="" widget="password" display="Password" id="uuid-6BD608EA-46C8-11F1-ADD5-B9F725D43659" name="password"/>
    <field value="" display="Login" name="submit" id="uuid-6BD64FF8-46C8-11F1-ADD5-B9F725D43659" attrs="" widget="submit" key="submit"/>
  </form>
</response>