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 uuid="C545F9E6-2A1A-11F1-BD58-4CADC27BCFD7" encoding="&#x2713;" uri="" method="post" key="login">
    <field id="uuid-C5462EAC-2A1A-11F1-BD58-4CADC27BCFD7" attrs="" display="Username" name="username" widget="text" value="" key="username"/>
    <field attrs="" id="uuid-C5467592-2A1A-11F1-BD58-4CADC27BCFD7" widget="password" key="password" display="Password" name="password"/>
    <field id="uuid-C546C13C-2A1A-11F1-BD58-4CADC27BCFD7" attrs="" display="Login" name="submit" key="submit" widget="submit" value=""/>
  </form>
</response>