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" encoding="&#x2713;" uuid="AC11DE00-2002-11EA-8F6C-0B37FC0ABCF6" method="post" uri="">
    <field value="" id="uuid-AC121082-2002-11EA-8F6C-0B37FC0ABCF6" name="username" key="username" attrs="" widget="text" display="Username"/>
    <field attrs="" display="Password" widget="password" id="uuid-AC123CE2-2002-11EA-8F6C-0B37FC0ABCF6" key="password" name="password"/>
    <field widget="submit" display="Login" attrs="" id="uuid-AC1274B4-2002-11EA-8F6C-0B37FC0ABCF6" value="" name="submit" key="submit"/>
  </form>
</response>