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 uuid="A306A054-793C-11F0-B7A9-F1C2ED0FA296" encoding="&#x2713;" key="login" method="post" uri="">
    <field attrs="" name="username" widget="text" display="Username" id="uuid-A306D894-793C-11F0-B7A9-F1C2ED0FA296" key="username" value=""/>
    <field display="Password" widget="password" name="password" attrs="" key="password" id="uuid-A30726B4-793C-11F0-B7A9-F1C2ED0FA296"/>
    <field display="Login" attrs="" name="submit" widget="submit" key="submit" value="" id="uuid-A3078136-793C-11F0-B7A9-F1C2ED0FA296"/>
  </form>
</response>