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;" uuid="17F1AFD6-8BE2-11F1-977B-A59B898B97BA" key="login" method="post">
    <field display="Username" id="uuid-17F1DE84-8BE2-11F1-977B-A59B898B97BA" name="username" key="username" attrs="" value="" widget="text"/>
    <field widget="password" attrs="" key="password" name="password" id="uuid-17F22498-8BE2-11F1-977B-A59B898B97BA" display="Password"/>
    <field widget="submit" value="" attrs="" key="submit" id="uuid-17F26F66-8BE2-11F1-977B-A59B898B97BA" display="Login" name="submit"/>
  </form>
</response>