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 uuid="44300D64-7F48-11F1-8ADB-B2F02C3515A0" uri="" encoding="&#x2713;" method="post" key="login">
    <field id="uuid-44303F8C-7F48-11F1-8ADB-B2F02C3515A0" widget="text" key="username" name="username" attrs="" display="Username" value=""/>
    <field display="Password" key="password" widget="password" name="password" attrs="" id="uuid-4430885C-7F48-11F1-8ADB-B2F02C3515A0"/>
    <field id="uuid-4430D1F4-7F48-11F1-8ADB-B2F02C3515A0" name="submit" attrs="" key="submit" widget="submit" display="Login" value=""/>
  </form>
</response>