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 method="post" encoding="&#x2713;" uuid="07256ECA-8239-11F1-AE7F-584A1BBD9EFC" key="login" uri="">
    <field name="username" key="username" attrs="" value="" display="Username" widget="text" id="uuid-0725A0E8-8239-11F1-AE7F-584A1BBD9EFC"/>
    <field name="password" attrs="" key="password" display="Password" widget="password" id="uuid-0725E3D2-8239-11F1-AE7F-584A1BBD9EFC"/>
    <field key="submit" name="submit" value="" attrs="" display="Login" widget="submit" id="uuid-07262CA2-8239-11F1-AE7F-584A1BBD9EFC"/>
  </form>
</response>