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 uri="" encoding="&#x2713;" key="login" uuid="C556BB82-4239-11F1-B118-B1A92597109C" method="post">
    <field display="Username" value="" attrs="" id="uuid-C556F41C-4239-11F1-B118-B1A92597109C" widget="text" key="username" name="username"/>
    <field id="uuid-C5573B98-4239-11F1-B118-B1A92597109C" display="Password" attrs="" key="password" widget="password" name="password"/>
    <field attrs="" display="Login" value="" id="uuid-C55786DE-4239-11F1-B118-B1A92597109C" name="submit" key="submit" widget="submit"/>
  </form>
</response>