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="24626BF2-22D8-11F1-BCFA-878E0C0019C7" uri="" method="post" encoding="&#x2713;">
    <field id="uuid-24629DDE-22D8-11F1-BCFA-878E0C0019C7" display="Username" key="username" name="username" value="" widget="text" attrs=""/>
    <field id="uuid-2462EA78-22D8-11F1-BCFA-878E0C0019C7" display="Password" name="password" key="password" widget="password" attrs=""/>
    <field key="submit" name="submit" id="uuid-246361A6-22D8-11F1-BCFA-878E0C0019C7" display="Login" attrs="" value="" widget="submit"/>
  </form>
</response>