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="376192B6-C8F8-11F1-BCC8-551DB4F3B997" encoding="&#x2713;" method="post" key="login" uri="">
    <field id="uuid-3761C54C-C8F8-11F1-BCC8-551DB4F3B997" value="" attrs="" key="username" widget="text" display="Username" name="username"/>
    <field id="uuid-37620DFE-C8F8-11F1-BCC8-551DB4F3B997" widget="password" name="password" display="Password" attrs="" key="password"/>
    <field key="submit" attrs="" value="" display="Login" name="submit" widget="submit" id="uuid-37625A66-C8F8-11F1-BCC8-551DB4F3B997"/>
  </form>
</response>