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 key="login" uri="" method="post" uuid="B8409BB0-2E03-11F1-AB92-CA9BA9425785" encoding="&#x2713;">
    <field display="Username" name="username" key="username" id="uuid-B840D12A-2E03-11F1-AB92-CA9BA9425785" attrs="" widget="text" value=""/>
    <field id="uuid-B8411978-2E03-11F1-AB92-CA9BA9425785" attrs="" widget="password" name="password" key="password" display="Password"/>
    <field display="Login" name="submit" key="submit" attrs="" widget="submit" value="" id="uuid-B84166E4-2E03-11F1-AB92-CA9BA9425785"/>
  </form>
</response>