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 key="login" encoding="&#x2713;" uri="" uuid="F6B8D4A4-A013-11EA-9656-2D221D44A1C8" method="post">
    <field key="username" id="uuid-F6B90B0E-A013-11EA-9656-2D221D44A1C8" value="" widget="text" attrs="" name="username" display="Username"/>
    <field key="password" id="uuid-F6B94A92-A013-11EA-9656-2D221D44A1C8" widget="password" attrs="" name="password" display="Password"/>
    <field widget="submit" key="submit" id="uuid-F6B98A52-A013-11EA-9656-2D221D44A1C8" value="" attrs="" name="submit" display="Login"/>
  </form>
</response>