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="" method="post" uuid="457A4836-3689-11F1-9290-F7BFA9425785">
    <field id="uuid-457A7BEE-3689-11F1-9290-F7BFA9425785" attrs="" widget="text" key="username" name="username" value="" display="Username"/>
    <field display="Password" name="password" widget="password" attrs="" key="password" id="uuid-457AC068-3689-11F1-9290-F7BFA9425785"/>
    <field display="Login" name="submit" value="" id="uuid-457B0AA0-3689-11F1-9290-F7BFA9425785" key="submit" widget="submit" attrs=""/>
  </form>
</response>