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="2B672A5E-8C83-11F1-9E2C-11C425D43659" method="post" encoding="&#x2713;" key="login" uri="">
    <field display="Username" key="username" attrs="" name="username" id="uuid-2B676226-8C83-11F1-9E2C-11C425D43659" widget="text" value=""/>
    <field widget="password" key="password" name="password" display="Password" attrs="" id="uuid-2B67A722-8C83-11F1-9E2C-11C425D43659"/>
    <field key="submit" name="submit" display="Login" attrs="" id="uuid-2B67F218-8C83-11F1-9E2C-11C425D43659" widget="submit" value=""/>
  </form>
</response>