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="930F33D0-A300-11F0-B9CA-435DDBBCD7F8">
    <field id="uuid-930F65B2-A300-11F0-B9CA-435DDBBCD7F8" display="Username" attrs="" key="username" name="username" value="" widget="text"/>
    <field display="Password" id="uuid-930FAAA4-A300-11F0-B9CA-435DDBBCD7F8" attrs="" key="password" name="password" widget="password"/>
    <field value="" widget="submit" name="submit" attrs="" key="submit" id="uuid-930FF34C-A300-11F0-B9CA-435DDBBCD7F8" display="Login"/>
  </form>
</response>