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="153939A2-2757-11F1-9C90-8ABB2597109C" encoding="&#x2713;" key="login" method="post" uri="">
    <field key="username" name="username" id="uuid-15396FBC-2757-11F1-9C90-8ABB2597109C" display="Username" value="" attrs="" widget="text"/>
    <field name="password" key="password" widget="password" id="uuid-1539B864-2757-11F1-9C90-8ABB2597109C" display="Password" attrs=""/>
    <field key="submit" name="submit" attrs="" value="" id="uuid-153A02EC-2757-11F1-9C90-8ABB2597109C" display="Login" widget="submit"/>
  </form>
</response>