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" encoding="&#x2713;" uuid="0AE2E864-1716-11F1-9CEE-1D6C1ABF1312" key="login" uri="">
    <field display="Username" name="username" widget="text" key="username" attrs="" id="uuid-0AE31ABE-1716-11F1-9CEE-1D6C1ABF1312" value=""/>
    <field id="uuid-0AE363B6-1716-11F1-9CEE-1D6C1ABF1312" widget="password" name="password" display="Password" key="password" attrs=""/>
    <field value="" id="uuid-0AE3AECA-1716-11F1-9CEE-1D6C1ABF1312" key="submit" attrs="" widget="submit" display="Login" name="submit"/>
  </form>
</response>