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" encoding="&#x2713;" uuid="092C5FB2-3284-11F1-ACFF-B653C27BCFD7" method="post" uri="">
    <field id="uuid-092C9108-3284-11F1-ACFF-B653C27BCFD7" attrs="" display="Username" value="" widget="text" key="username" name="username"/>
    <field id="uuid-092CDA82-3284-11F1-ACFF-B653C27BCFD7" display="Password" attrs="" widget="password" key="password" name="password"/>
    <field display="Login" attrs="" value="" id="uuid-092D260E-3284-11F1-ACFF-B653C27BCFD7" key="submit" name="submit" widget="submit"/>
  </form>
</response>