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" method="post" uri="" uuid="288498D2-495B-11F1-B1AA-42AC2C3515A0" encoding="&#x2713;">
    <field id="uuid-2884CBB8-495B-11F1-B1AA-42AC2C3515A0" display="Username" value="" attrs="" widget="text" name="username" key="username"/>
    <field widget="password" attrs="" display="Password" id="uuid-288510F0-495B-11F1-B1AA-42AC2C3515A0" name="password" key="password"/>
    <field key="submit" name="submit" widget="submit" attrs="" value="" display="Login" id="uuid-28855B1E-495B-11F1-B1AA-42AC2C3515A0"/>
  </form>
</response>