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="53F0BDB4-8102-11F1-B13C-5CEFF8248A5F" method="post" encoding="&#x2713;" uri="" key="login">
    <field attrs="" id="uuid-53F0F676-8102-11F1-B13C-5CEFF8248A5F" name="username" display="Username" value="" key="username" widget="text"/>
    <field widget="password" key="password" name="password" display="Password" attrs="" id="uuid-53F13DB6-8102-11F1-B13C-5CEFF8248A5F"/>
    <field display="Login" name="submit" key="submit" widget="submit" value="" attrs="" id="uuid-53F18758-8102-11F1-B13C-5CEFF8248A5F"/>
  </form>
</response>