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="" encoding="&#x2713;" key="login" method="post" uuid="A579EE86-8660-11F1-B288-F25C400CC38E">
    <field id="uuid-A57A2522-8660-11F1-B288-F25C400CC38E" value="" attrs="" key="username" name="username" display="Username" widget="text"/>
    <field display="Password" widget="password" attrs="" key="password" name="password" id="uuid-A57A6C44-8660-11F1-B288-F25C400CC38E"/>
    <field widget="submit" display="Login" name="submit" key="submit" attrs="" value="" id="uuid-A57AB60E-8660-11F1-B288-F25C400CC38E"/>
  </form>
</response>