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 method="post" uuid="BF466D62-3FCA-11F1-B843-998BA9425785" key="login" encoding="&#x2713;" uri="">
    <field display="Username" key="username" widget="text" attrs="" id="uuid-BF46A23C-3FCA-11F1-B843-998BA9425785" name="username" value=""/>
    <field id="uuid-BF46EBB6-3FCA-11F1-B843-998BA9425785" name="password" attrs="" widget="password" display="Password" key="password"/>
    <field display="Login" key="submit" widget="submit" attrs="" id="uuid-BF47381E-3FCA-11F1-B843-998BA9425785" name="submit" value=""/>
  </form>
</response>