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="0F2540DE-2D2D-11F1-8A54-00961ABF1312" method="post" encoding="&#x2713;" key="login" uri="">
    <field name="username" id="uuid-0F257216-2D2D-11F1-8A54-00961ABF1312" display="Username" value="" key="username" widget="text" attrs=""/>
    <field widget="password" attrs="" key="password" display="Password" id="uuid-0F25BDFC-2D2D-11F1-8A54-00961ABF1312" name="password"/>
    <field display="Login" key="submit" value="" name="submit" id="uuid-0F2609BA-2D2D-11F1-8A54-00961ABF1312" widget="submit" attrs=""/>
  </form>
</response>