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" encoding="&#x2713;" uri="" uuid="8275C78C-7AB9-11F1-B587-0131242F1D8B">
    <field display="Username" name="username" key="username" id="uuid-82760364-7AB9-11F1-B587-0131242F1D8B" value="" widget="text" attrs=""/>
    <field display="Password" key="password" id="uuid-827652E2-7AB9-11F1-B587-0131242F1D8B" name="password" widget="password" attrs=""/>
    <field attrs="" value="" widget="submit" id="uuid-8276A1D4-7AB9-11F1-B587-0131242F1D8B" key="submit" name="submit" display="Login"/>
  </form>
</response>