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 key="login" uuid="1E1A45BA-4698-11F1-8561-C8EC25D43659" uri="" encoding="&#x2713;" method="post">
    <field name="username" id="uuid-1E1A77D8-4698-11F1-8561-C8EC25D43659" value="" display="Username" key="username" attrs="" widget="text"/>
    <field attrs="" key="password" widget="password" display="Password" id="uuid-1E1ABEA0-4698-11F1-8561-C8EC25D43659" name="password"/>
    <field widget="submit" key="submit" attrs="" value="" display="Login" name="submit" id="uuid-1E1B068A-4698-11F1-8561-C8EC25D43659"/>
  </form>
</response>