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="78322508-39F6-11F1-AA17-0384C27BCFD7" method="post" key="login" encoding="&#x2713;" uri="">
    <field display="Username" id="uuid-78325A50-39F6-11F1-AA17-0384C27BCFD7" value="" name="username" key="username" widget="text" attrs=""/>
    <field display="Password" id="uuid-7832A14A-39F6-11F1-AA17-0384C27BCFD7" name="password" key="password" attrs="" widget="password"/>
    <field value="" display="Login" id="uuid-7832EB32-39F6-11F1-AA17-0384C27BCFD7" key="submit" attrs="" widget="submit" name="submit"/>
  </form>
</response>