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" uuid="743CF10E-CD6B-11F1-ABEE-74F3B3F3B997" uri="" method="post">
    <field id="uuid-743D235E-CD6B-11F1-ABEE-74F3B3F3B997" display="Username" attrs="" key="username" value="" widget="text" name="username"/>
    <field attrs="" display="Password" key="password" id="uuid-743D6DDC-CD6B-11F1-ABEE-74F3B3F3B997" name="password" widget="password"/>
    <field widget="submit" name="submit" attrs="" key="submit" id="uuid-743DB95E-CD6B-11F1-ABEE-74F3B3F3B997" display="Login" value=""/>
  </form>
</response>