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="B929AF14-83C4-11F1-B2D5-B9A52C3515A0" encoding="&#x2713;" key="login" uri="">
    <field key="username" value="" display="Username" name="username" attrs="" widget="text" id="uuid-B929DFCA-83C4-11F1-B2D5-B9A52C3515A0"/>
    <field id="uuid-B92A2872-83C4-11F1-B2D5-B9A52C3515A0" widget="password" key="password" name="password" attrs="" display="Password"/>
    <field widget="submit" value="" name="submit" display="Login" attrs="" key="submit" id="uuid-B92A7110-83C4-11F1-B2D5-B9A52C3515A0"/>
  </form>
</response>