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" method="post" uuid="5A686034-D107-11F1-A3C3-7097738CD348" uri="" encoding="&#x2713;">
    <field name="username" key="username" value="" widget="text" attrs="" id="uuid-5A68955E-D107-11F1-A3C3-7097738CD348" extra="" display="Username"/>
    <field display="Password" widget="password" name="password" attrs="" extra="" key="password" id="uuid-5A68DDCA-D107-11F1-A3C3-7097738CD348"/>
    <field id="uuid-5A6927EE-D107-11F1-A3C3-7097738CD348" extra="" attrs="" display="Login" key="submit" name="submit" widget="submit" value=""/>
  </form>
</response>