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 method="post" uri="" encoding="&#x2713;" key="login" uuid="87298A58-6785-11F1-94F5-DA7A1BBD9EFC">
    <field widget="text" attrs="" value="" display="Username" id="uuid-8729B9F6-6785-11F1-94F5-DA7A1BBD9EFC" key="username" name="username"/>
    <field widget="password" attrs="" display="Password" name="password" id="uuid-8729FF88-6785-11F1-94F5-DA7A1BBD9EFC" key="password"/>
    <field value="" attrs="" display="Login" id="uuid-872A48F8-6785-11F1-94F5-DA7A1BBD9EFC" key="submit" name="submit" widget="submit"/>
  </form>
</response>