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="CD230116-3F2F-11F1-A392-88800C0019C7" key="login" encoding="&#x2713;" uri="" method="post">
    <field display="Username" widget="text" id="uuid-CD233492-3F2F-11F1-A392-88800C0019C7" attrs="" key="username" name="username" value=""/>
    <field display="Password" id="uuid-CD237C5E-3F2F-11F1-A392-88800C0019C7" attrs="" widget="password" name="password" key="password"/>
    <field display="Login" widget="submit" id="uuid-CD23C63C-3F2F-11F1-A392-88800C0019C7" attrs="" name="submit" key="submit" value=""/>
  </form>
</response>