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="3A564420-29AD-11F1-BA0C-397CA9425785" method="post" encoding="&#x2713;">
    <field display="Username" key="username" id="uuid-3A5666B2-29AD-11F1-BA0C-397CA9425785" attrs="" value="" widget="text" name="username"/>
    <field attrs="" id="uuid-3A56834A-29AD-11F1-BA0C-397CA9425785" display="Password" key="password" name="password" widget="password"/>
    <field key="submit" display="Login" id="uuid-3A56A136-29AD-11F1-BA0C-397CA9425785" attrs="" value="" widget="submit" name="submit"/>
  </form>
</response>