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 encoding="&#x2713;" key="login" uri="" uuid="73CC89D8-CFF9-11F1-8BE3-FCECB3F3B997" method="post">
    <field display="Username" id="uuid-73CCBC1E-CFF9-11F1-8BE3-FCECB3F3B997" key="username" attrs="" value="" widget="text" extra="" name="username"/>
    <field extra="" name="password" widget="password" display="Password" key="password" id="uuid-73CD046C-CFF9-11F1-8BE3-FCECB3F3B997" attrs=""/>
    <field widget="submit" value="" display="Login" attrs="" id="uuid-73CD4D5A-CFF9-11F1-8BE3-FCECB3F3B997" key="submit" extra="" name="submit"/>
  </form>
</response>