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="" uuid="892BF9E6-4DC5-11F1-ADD3-D9AFF8248A5F" method="post" key="login" encoding="&#x2713;">
    <field name="username" display="Username" attrs="" key="username" id="uuid-892C28C6-4DC5-11F1-ADD3-D9AFF8248A5F" widget="text" value=""/>
    <field widget="password" id="uuid-892C7056-4DC5-11F1-ADD3-D9AFF8248A5F" key="password" attrs="" display="Password" name="password"/>
    <field name="submit" display="Login" attrs="" key="submit" id="uuid-892CB9F8-4DC5-11F1-ADD3-D9AFF8248A5F" widget="submit" value=""/>
  </form>
</response>