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="ED5CE828-C039-11EA-89BB-9E9192B91BC6" encoding="&#x2713;" uri="" key="login">
    <field value="" name="username" widget="text" attrs="" id="uuid-ED5D16AE-C039-11EA-89BB-9E9192B91BC6" key="username" display="Username"/>
    <field name="password" widget="password" display="Password" attrs="" id="uuid-ED5D446C-C039-11EA-89BB-9E9192B91BC6" key="password"/>
    <field key="submit" id="uuid-ED5D7A0E-C039-11EA-89BB-9E9192B91BC6" attrs="" display="Login" value="" widget="submit" name="submit"/>
  </form>
</response>