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;" uuid="A6DC3D74-9DD6-11F0-9E0F-BF60DBBCD7F8" uri="" method="post" key="login">
    <field id="uuid-A6DC8A04-9DD6-11F0-9E0F-BF60DBBCD7F8" widget="text" key="username" name="username" attrs="" display="Username" value=""/>
    <field display="Password" name="password" attrs="" key="password" id="uuid-A6DCD432-9DD6-11F0-9E0F-BF60DBBCD7F8" widget="password"/>
    <field id="uuid-A6DD1ECE-9DD6-11F0-9E0F-BF60DBBCD7F8" widget="submit" key="submit" name="submit" attrs="" display="Login" value=""/>
  </form>
</response>