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="E514B920-2C2B-11F1-8F86-80022697109C" method="post" key="login" encoding="&#x2713;" uri="">
    <field value="" attrs="" key="username" name="username" display="Username" id="uuid-E514EC60-2C2B-11F1-8F86-80022697109C" widget="text"/>
    <field widget="password" display="Password" id="uuid-E5153198-2C2B-11F1-8F86-80022697109C" attrs="" key="password" name="password"/>
    <field id="uuid-E5157B08-2C2B-11F1-8F86-80022697109C" display="Login" widget="submit" name="submit" value="" key="submit" attrs=""/>
  </form>
</response>