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 uri="" key="login" method="post" uuid="909D9E08-1994-11EA-AD02-80C547F95FFE" encoding="&#x2713;">
    <field widget="text" attrs="" id="uuid-909DCBBC-1994-11EA-AD02-80C547F95FFE" value="" key="username" display="Username" name="username"/>
    <field widget="password" attrs="" id="uuid-909DF484-1994-11EA-AD02-80C547F95FFE" display="Password" name="password" key="password"/>
    <field value="" id="uuid-909E24EA-1994-11EA-AD02-80C547F95FFE" key="submit" display="Login" name="submit" attrs="" widget="submit"/>
  </form>
</response>