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 key="login" uuid="47BBC14C-D148-11F1-B661-53CA49691810" encoding="&#x2713;" uri="" method="post">
    <field id="uuid-47BBF676-D148-11F1-B661-53CA49691810" extra="" name="username" widget="text" attrs="" display="Username" value="" key="username"/>
    <field key="password" name="password" attrs="" widget="password" extra="" id="uuid-47BC3F64-D148-11F1-B661-53CA49691810" display="Password"/>
    <field key="submit" value="" display="Login" widget="submit" attrs="" name="submit" extra="" id="uuid-47BC8870-D148-11F1-B661-53CA49691810"/>
  </form>
</response>