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;" uri="" method="post" uuid="E1F76658-CEAA-11F1-943D-1AAD738CD348" key="login">
    <field display="Username" attrs="" id="uuid-E1F79AB0-CEAA-11F1-943D-1AAD738CD348" extra="" value="" widget="text" name="username" key="username"/>
    <field display="Password" widget="password" id="uuid-E1F7E164-CEAA-11F1-943D-1AAD738CD348" key="password" extra="" attrs="" name="password"/>
    <field extra="" id="uuid-E1F82822-CEAA-11F1-943D-1AAD738CD348" attrs="" display="Login" key="submit" name="submit" widget="submit" value=""/>
  </form>
</response>