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 key="login" uri="" encoding="&#x2713;" uuid="0886DE22-1993-11EA-AEC0-80C547F95FFE" method="post">
    <field name="username" display="Username" key="username" value="" id="uuid-08870DCA-1993-11EA-AEC0-80C547F95FFE" attrs="" widget="text"/>
    <field attrs="" widget="password" id="uuid-08873836-1993-11EA-AEC0-80C547F95FFE" display="Password" key="password" name="password"/>
    <field widget="submit" attrs="" id="uuid-08876BBC-1993-11EA-AEC0-80C547F95FFE" value="" key="submit" display="Login" name="submit"/>
  </form>
</response>