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;" method="post" key="login" uri="" uuid="B0CF8B30-4B80-11F1-9125-1ABB25D43659">
    <field widget="text" display="Username" name="username" attrs="" key="username" id="uuid-B0CFBE52-4B80-11F1-9125-1ABB25D43659" value=""/>
    <field id="uuid-B0D00448-4B80-11F1-9125-1ABB25D43659" key="password" widget="password" display="Password" attrs="" name="password"/>
    <field display="Login" attrs="" name="submit" widget="submit" value="" id="uuid-B0D0493A-4B80-11F1-9125-1ABB25D43659" key="submit"/>
  </form>
</response>