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="" uuid="D1CFABBE-9170-11F0-B7FB-5FAB3B611A6C" method="post" key="login">
    <field id="uuid-D1CFE084-9170-11F0-B7FB-5FAB3B611A6C" display="Username" name="username" value="" attrs="" widget="text" key="username"/>
    <field name="password" display="Password" id="uuid-D1D02A44-9170-11F0-B7FB-5FAB3B611A6C" widget="password" attrs="" key="password"/>
    <field widget="submit" attrs="" value="" name="submit" display="Login" id="uuid-D1D07A08-9170-11F0-B7FB-5FAB3B611A6C" key="submit"/>
  </form>
</response>