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="" uuid="EBBF6FA2-4FAA-11F1-B034-9D022D3515A0" method="post" encoding="&#x2713;">
    <field display="Username" key="username" widget="text" name="username" attrs="" id="uuid-EBBF9FFE-4FAA-11F1-B034-9D022D3515A0" value=""/>
    <field key="password" attrs="" widget="password" name="password" display="Password" id="uuid-EBBFE6D0-4FAA-11F1-B034-9D022D3515A0"/>
    <field value="" id="uuid-EBC02EF6-4FAA-11F1-B034-9D022D3515A0" display="Login" attrs="" name="submit" widget="submit" key="submit"/>
  </form>
</response>