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="6837DC8A-6C99-11F1-AC31-EDED8F49F76F" encoding="&#x2713;" uri="" method="post" key="login">
    <field id="uuid-68388F72-6C99-11F1-AC31-EDED8F49F76F" display="Username" key="username" name="username" widget="text" value="" attrs=""/>
    <field id="uuid-68391280-6C99-11F1-AC31-EDED8F49F76F" display="Password" key="password" name="password" widget="password" attrs=""/>
    <field value="" attrs="" widget="submit" name="submit" key="submit" display="Login" id="uuid-68394CBE-6C99-11F1-AC31-EDED8F49F76F"/>
  </form>
</response>