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 uuid="0ECB05B4-6E6B-11F0-8496-11E7B03FE236" encoding="&#x2713;" uri="" key="login" method="post">
    <field display="Username" id="uuid-0ECB3912-6E6B-11F0-8496-11E7B03FE236" attrs="" widget="text" value="" key="username" name="username"/>
    <field widget="password" attrs="" id="uuid-0ECB7C56-6E6B-11F0-8496-11E7B03FE236" display="Password" name="password" key="password"/>
    <field id="uuid-0ECBC5E4-6E6B-11F0-8496-11E7B03FE236" attrs="" display="Login" widget="submit" name="submit" value="" key="submit"/>
  </form>
</response>