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="DD56F2F2-2007-11EA-AC49-EEBD47F95FFE">
    <field widget="text" value="" attrs="" display="Username" id="uuid-DD572150-2007-11EA-AC49-EEBD47F95FFE" name="username" key="username"/>
    <field widget="password" attrs="" display="Password" key="password" id="uuid-DD575558-2007-11EA-AC49-EEBD47F95FFE" name="password"/>
    <field key="submit" name="submit" id="uuid-DD578B4A-2007-11EA-AC49-EEBD47F95FFE" display="Login" attrs="" value="" widget="submit"/>
  </form>
</response>