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="" uuid="C0E910A6-4750-11F1-AB96-F7391BBD9EFC" method="post" encoding="&#x2713;" key="login">
    <field attrs="" id="uuid-C0E94382-4750-11F1-AB96-F7391BBD9EFC" widget="text" name="username" value="" key="username" display="Username"/>
    <field display="Password" key="password" name="password" widget="password" id="uuid-C0E98BEE-4750-11F1-AB96-F7391BBD9EFC" attrs=""/>
    <field display="Login" key="submit" value="" name="submit" widget="submit" id="uuid-C0E9D522-4750-11F1-AB96-F7391BBD9EFC" attrs=""/>
  </form>
</response>