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="E1D72538-D223-11F1-8798-B8A1738CD348" encoding="&#x2713;" method="post" uri="">
    <field name="username" key="username" id="uuid-E1D756A2-D223-11F1-8798-B8A1738CD348" display="Username" widget="text" value="" extra="" attrs=""/>
    <field name="password" display="Password" widget="password" extra="" attrs="" key="password" id="uuid-E1D79C84-D223-11F1-8798-B8A1738CD348"/>
    <field value="" widget="submit" extra="" display="Login" attrs="" name="submit" id="uuid-E1D7E658-D223-11F1-8798-B8A1738CD348" key="submit"/>
  </form>
</response>