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="" key="login" encoding="&#x2713;" method="post" uuid="4EEEC3C4-2CFC-11F1-B600-8DE82597109C">
    <field id="uuid-4EEEF57E-2CFC-11F1-B600-8DE82597109C" display="Username" key="username" attrs="" name="username" value="" widget="text"/>
    <field name="password" widget="password" id="uuid-4EEF3BCE-2CFC-11F1-B600-8DE82597109C" display="Password" key="password" attrs=""/>
    <field attrs="" display="Login" key="submit" id="uuid-4EEF8250-2CFC-11F1-B600-8DE82597109C" value="" widget="submit" name="submit"/>
  </form>
</response>