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" encoding="&#x2713;" uuid="5718A764-7261-11F0-B692-51B3ED0FA296" uri="" method="post">
    <field attrs="" id="uuid-5718E1CA-7261-11F0-B692-51B3ED0FA296" display="Username" value="" key="username" widget="text" name="username"/>
    <field display="Password" attrs="" id="uuid-5719383C-7261-11F0-B692-51B3ED0FA296" name="password" key="password" widget="password"/>
    <field display="Login" value="" attrs="" id="uuid-571988BE-7261-11F0-B692-51B3ED0FA296" name="submit" key="submit" widget="submit"/>
  </form>
</response>