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;" key="login" method="post" uuid="91CD2E88-9260-11F0-87A0-E43B36923908" uri="">
    <field display="Username" attrs="" widget="text" id="uuid-91CD64B6-9260-11F0-87A0-E43B36923908" key="username" name="username" value=""/>
    <field widget="password" display="Password" attrs="" key="password" name="password" id="uuid-91CDB038-9260-11F0-87A0-E43B36923908"/>
    <field widget="submit" display="Login" attrs="" id="uuid-91CDFCE6-9260-11F0-87A0-E43B36923908" name="submit" key="submit" value=""/>
  </form>
</response>