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;" uuid="21B01B68-2003-11EA-94B7-1937FC0ABCF6" method="post" uri="">
    <field id="uuid-21B04EB2-2003-11EA-94B7-1937FC0ABCF6" value="" name="username" key="username" attrs="" display="Username" widget="text"/>
    <field id="uuid-21B07680-2003-11EA-94B7-1937FC0ABCF6" key="password" name="password" display="Password" widget="password" attrs=""/>
    <field attrs="" widget="submit" display="Login" key="submit" name="submit" value="" id="uuid-21B0A7AE-2003-11EA-94B7-1937FC0ABCF6"/>
  </form>
</response>