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 uri="" method="post" encoding="&#x2713;" uuid="41FD468C-7DCD-11F1-B00F-F552242F1D8B" key="login">
    <field name="username" display="Username" id="uuid-41FD837C-7DCD-11F1-B00F-F552242F1D8B" value="" widget="text" key="username" attrs=""/>
    <field display="Password" id="uuid-41FDDAF2-7DCD-11F1-B00F-F552242F1D8B" widget="password" name="password" attrs="" key="password"/>
    <field key="submit" attrs="" name="submit" id="uuid-41FE2C8C-7DCD-11F1-B00F-F552242F1D8B" display="Login" value="" widget="submit"/>
  </form>
</response>