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" uri="" uuid="479DC89C-41EF-11F1-A478-7C2F1ABF1312" method="post">
    <field name="username" display="Username" key="username" id="uuid-479DFC36-41EF-11F1-A478-7C2F1ABF1312" attrs="" value="" widget="text"/>
    <field id="uuid-479E45A6-41EF-11F1-A478-7C2F1ABF1312" key="password" display="Password" name="password" widget="password" attrs=""/>
    <field display="Login" key="submit" name="submit" id="uuid-479E8DA4-41EF-11F1-A478-7C2F1ABF1312" attrs="" widget="submit" value=""/>
  </form>
</response>