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" key="login" uuid="3D9A4378-8CD4-11F0-81DC-20763B611A6C" encoding="&#x2713;" uri="">
    <field id="uuid-3D9A7726-8CD4-11F0-81DC-20763B611A6C" attrs="" name="username" display="Username" value="" key="username" widget="text"/>
    <field display="Password" widget="password" key="password" id="uuid-3D9ABE66-8CD4-11F0-81DC-20763B611A6C" attrs="" name="password"/>
    <field key="submit" widget="submit" display="Login" value="" name="submit" attrs="" id="uuid-3D9B07A4-8CD4-11F0-81DC-20763B611A6C"/>
  </form>
</response>