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="A2635A32-1995-11EA-8DA8-2A080BBD1946">
    <field key="username" widget="text" id="uuid-A2638E3A-1995-11EA-8DA8-2A080BBD1946" display="Username" attrs="" value="" name="username"/>
    <field name="password" key="password" widget="password" display="Password" id="uuid-A263C1F2-1995-11EA-8DA8-2A080BBD1946" attrs=""/>
    <field widget="submit" display="Login" id="uuid-A263F7D0-1995-11EA-8DA8-2A080BBD1946" attrs="" key="submit" name="submit" value=""/>
  </form>
</response>