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 encoding="&#x2713;" key="login" uri="" method="post" uuid="B0E9ECA2-6CD6-11F0-BD0D-46B062E0087B">
    <field attrs="" display="Username" key="username" value="" name="username" id="uuid-B0EA21F4-6CD6-11F0-BD0D-46B062E0087B" widget="text"/>
    <field widget="password" id="uuid-B0EA6A38-6CD6-11F0-BD0D-46B062E0087B" name="password" key="password" attrs="" display="Password"/>
    <field key="submit" attrs="" display="Login" widget="submit" id="uuid-B0EAB894-6CD6-11F0-BD0D-46B062E0087B" name="submit" value=""/>
  </form>
</response>