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="67222D3C-1845-11EA-885D-A58A47F95FFE" encoding="&#x2713;">
    <field widget="text" attrs="" key="username" display="Username" name="username" id="uuid-67225E1A-1845-11EA-885D-A58A47F95FFE" value=""/>
    <field widget="password" attrs="" key="password" name="password" display="Password" id="uuid-67228868-1845-11EA-885D-A58A47F95FFE"/>
    <field attrs="" widget="submit" name="submit" display="Login" key="submit" value="" id="uuid-6722BBDA-1845-11EA-885D-A58A47F95FFE"/>
  </form>
</response>