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 encoding="&#x2713;" key="login" method="post" uuid="F224FA3E-95FA-11F0-A55F-213E3B611A6C" uri="">
    <field id="uuid-F225310C-95FA-11F0-A55F-213E3B611A6C" widget="text" name="username" display="Username" attrs="" value="" key="username"/>
    <field key="password" attrs="" display="Password" widget="password" id="uuid-F225782E-95FA-11F0-A55F-213E3B611A6C" name="password"/>
    <field key="submit" attrs="" display="Login" value="" widget="submit" id="uuid-F225C176-95FA-11F0-A55F-213E3B611A6C" name="submit"/>
  </form>
</response>