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 uuid="8666EC40-199A-11EA-A9CD-D0080BBD1946" key="login" method="post" uri="" encoding="&#x2713;">
    <field widget="text" display="Username" attrs="" id="uuid-8667203E-199A-11EA-A9CD-D0080BBD1946" key="username" name="username" value=""/>
    <field widget="password" attrs="" id="uuid-86674EBA-199A-11EA-A9CD-D0080BBD1946" display="Password" key="password" name="password"/>
    <field value="" name="submit" key="submit" widget="submit" display="Login" attrs="" id="uuid-8667854C-199A-11EA-A9CD-D0080BBD1946"/>
  </form>
</response>