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;" uri="" uuid="4DEF80C4-C3B9-11EA-A314-3DD747F95FFE" key="login">
    <field value="" id="uuid-4DEFB6DE-C3B9-11EA-A314-3DD747F95FFE" attrs="" key="username" widget="text" name="username" display="Username"/>
    <field name="password" widget="password" id="uuid-4DEFEB86-C3B9-11EA-A314-3DD747F95FFE" key="password" attrs="" display="Password"/>
    <field name="submit" widget="submit" value="" id="uuid-4DF021C8-C3B9-11EA-A314-3DD747F95FFE" attrs="" key="submit" display="Login"/>
  </form>
</response>