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 uuid="93BDF9FC-8E9A-11F1-963F-B326400CC38E" encoding="&#x2713;" uri="" method="post" key="login">
    <field display="Username" name="username" attrs="" widget="text" id="uuid-93BE2D8C-8E9A-11F1-963F-B326400CC38E" key="username" value=""/>
    <field key="password" id="uuid-93BE78FA-8E9A-11F1-963F-B326400CC38E" widget="password" attrs="" name="password" display="Password"/>
    <field attrs="" name="submit" display="Login" key="submit" id="uuid-93BEC6DE-8E9A-11F1-963F-B326400CC38E" widget="submit" value=""/>
  </form>
</response>