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 method="post" uuid="05D989FC-74E2-11F1-856C-41AF2C3515A0" key="login" encoding="&#x2713;" uri="">
    <field id="uuid-05D9BA4E-74E2-11F1-856C-41AF2C3515A0" value="" key="username" display="Username" attrs="" name="username" widget="text"/>
    <field attrs="" name="password" widget="password" id="uuid-05DA008A-74E2-11F1-856C-41AF2C3515A0" key="password" display="Password"/>
    <field value="" id="uuid-05DA4860-74E2-11F1-856C-41AF2C3515A0" display="Login" key="submit" attrs="" widget="submit" name="submit"/>
  </form>
</response>