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 encoding="&#x2713;" method="post" uri="" key="login" uuid="C4E755CA-1997-11EA-AA2C-D0080BBD1946">
    <field key="username" widget="text" id="uuid-C4E78752-1997-11EA-AA2C-D0080BBD1946" display="Username" attrs="" value="" name="username"/>
    <field name="password" widget="password" display="Password" attrs="" id="uuid-C4E7B786-1997-11EA-AA2C-D0080BBD1946" key="password"/>
    <field name="submit" value="" widget="submit" display="Login" id="uuid-C4E7E670-1997-11EA-AA2C-D0080BBD1946" attrs="" key="submit"/>
  </form>
</response>