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="A06EC510-1998-11EA-801B-80C547F95FFE" encoding="&#x2713;" uri="" key="login">
    <field attrs="" widget="text" value="" id="uuid-A06EF62A-1998-11EA-801B-80C547F95FFE" key="username" name="username" display="Username"/>
    <field id="uuid-A06F1F1A-1998-11EA-801B-80C547F95FFE" key="password" display="Password" name="password" widget="password" attrs=""/>
    <field attrs="" widget="submit" value="" id="uuid-A06F4E9A-1998-11EA-801B-80C547F95FFE" key="submit" display="Login" name="submit"/>
  </form>
</response>