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;" uuid="B6F7B978-8B87-11F1-B443-B709F6CBB814" method="post" key="login" uri="">
    <field display="Username" value="" id="uuid-B6F7EDDA-8B87-11F1-B443-B709F6CBB814" key="username" attrs="" name="username" widget="text"/>
    <field display="Password" key="password" id="uuid-B6F82EA8-8B87-11F1-B443-B709F6CBB814" widget="password" name="password" attrs=""/>
    <field display="Login" value="" name="submit" attrs="" widget="submit" id="uuid-B6F875D4-8B87-11F1-B443-B709F6CBB814" key="submit"/>
  </form>
</response>