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" uuid="CE908B7C-1993-11EA-AD02-80C547F95FFE" encoding="&#x2713;" uri="" key="login">
    <field attrs="" widget="text" name="username" display="Username" key="username" value="" id="uuid-CE90B9B2-1993-11EA-AD02-80C547F95FFE"/>
    <field attrs="" widget="password" key="password" display="Password" name="password" id="uuid-CE90E414-1993-11EA-AD02-80C547F95FFE"/>
    <field name="submit" display="Login" key="submit" value="" id="uuid-CE911538-1993-11EA-AD02-80C547F95FFE" widget="submit" attrs=""/>
  </form>
</response>