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" uri="" method="post" encoding="&#x2713;" uuid="E85D1CAC-2003-11EA-BDF0-0B37FC0ABCF6">
    <field display="Username" widget="text" attrs="" key="username" name="username" id="uuid-E85D4C7C-2003-11EA-BDF0-0B37FC0ABCF6" value=""/>
    <field display="Password" widget="password" attrs="" key="password" name="password" id="uuid-E85D7E86-2003-11EA-BDF0-0B37FC0ABCF6"/>
    <field name="submit" key="submit" value="" id="uuid-E85DB432-2003-11EA-BDF0-0B37FC0ABCF6" attrs="" display="Login" widget="submit"/>
  </form>
</response>