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;" uri="" uuid="38A012B0-7650-11F1-AC30-2D18F9248A5F" key="login" method="post">
    <field display="Username" id="uuid-38A04988-7650-11F1-AC30-2D18F9248A5F" value="" attrs="" widget="text" name="username" key="username"/>
    <field attrs="" id="uuid-38A08F2E-7650-11F1-AC30-2D18F9248A5F" display="Password" key="password" widget="password" name="password"/>
    <field widget="submit" name="submit" key="submit" display="Login" id="uuid-38A0DB3C-7650-11F1-AC30-2D18F9248A5F" attrs="" value=""/>
  </form>
</response>