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="135575E2-47C3-11F1-82A3-770F2D3515A0" method="post" uri="" key="login">
    <field attrs="" display="Username" value="" widget="text" name="username" id="uuid-1355A684-47C3-11F1-82A3-770F2D3515A0" key="username"/>
    <field name="password" key="password" id="uuid-1355EFCC-47C3-11F1-82A3-770F2D3515A0" attrs="" display="Password" widget="password"/>
    <field id="uuid-13561D62-47C3-11F1-82A3-770F2D3515A0" key="submit" name="submit" display="Login" value="" widget="submit" attrs=""/>
  </form>
</response>