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;" uri="" uuid="25A8FA50-927B-11F0-A81A-6B0655FD9ABD" method="post">
    <field display="Username" name="username" widget="text" key="username" id="uuid-25A92F8E-927B-11F0-A81A-6B0655FD9ABD" attrs="" value=""/>
    <field attrs="" key="password" id="uuid-25A97868-927B-11F0-A81A-6B0655FD9ABD" widget="password" name="password" display="Password"/>
    <field name="submit" display="Login" widget="submit" attrs="" key="submit" id="uuid-25A9C16A-927B-11F0-A81A-6B0655FD9ABD" value=""/>
  </form>
</response>