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;" method="post" uuid="B1D3CDFE-CFC7-11F1-A4FA-4EA20B50D6CE" uri="" key="login">
    <field id="uuid-B1D40562-CFC7-11F1-A4FA-4EA20B50D6CE" key="username" attrs="" extra="" widget="text" display="Username" name="username" value=""/>
    <field key="password" display="Password" name="password" id="uuid-B1D44DBA-CFC7-11F1-A4FA-4EA20B50D6CE" widget="password" extra="" attrs=""/>
    <field key="submit" id="uuid-B1D499DC-CFC7-11F1-A4FA-4EA20B50D6CE" name="submit" display="Login" value="" attrs="" extra="" widget="submit"/>
  </form>
</response>