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 uri="" key="login" uuid="89A10E92-C909-11F1-A217-1A1FB4F3B997" encoding="&#x2713;" method="post">
    <field id="uuid-89A14614-C909-11F1-A217-1A1FB4F3B997" display="Username" name="username" widget="text" key="username" attrs="" value=""/>
    <field name="password" display="Password" widget="password" key="password" attrs="" id="uuid-89A1910A-C909-11F1-A217-1A1FB4F3B997"/>
    <field key="submit" value="" attrs="" display="Login" name="submit" widget="submit" id="uuid-89A1D836-C909-11F1-A217-1A1FB4F3B997"/>
  </form>
</response>