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;" method="post" uuid="63846D0C-2E82-11F1-BB10-04B2C27BCFD7" key="login" uri="">
    <field id="uuid-6384A2D6-2E82-11F1-BB10-04B2C27BCFD7" value="" key="username" display="Username" name="username" attrs="" widget="text"/>
    <field id="uuid-6384EB38-2E82-11F1-BB10-04B2C27BCFD7" display="Password" name="password" key="password" attrs="" widget="password"/>
    <field widget="submit" attrs="" display="Login" key="submit" name="submit" value="" id="uuid-638538A4-2E82-11F1-BB10-04B2C27BCFD7"/>
  </form>
</response>