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" method="post" uuid="9C898D0A-4BD6-11F1-8850-D3E88F49F76F" uri="" encoding="&#x2713;">
    <field id="uuid-9C89C27A-4BD6-11F1-8850-D3E88F49F76F" value="" attrs="" display="Username" name="username" widget="text" key="username"/>
    <field key="password" widget="password" name="password" display="Password" attrs="" id="uuid-9C8A0866-4BD6-11F1-8850-D3E88F49F76F"/>
    <field name="submit" widget="submit" key="submit" id="uuid-9C8A4FB0-4BD6-11F1-8850-D3E88F49F76F" value="" display="Login" attrs=""/>
  </form>
</response>