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" key="login" uri="" uuid="0B940958-1841-11EA-8C34-2EDF490E2E26">
    <field name="username" widget="text" attrs="" display="Username" id="uuid-0B943E00-1841-11EA-8C34-2EDF490E2E26" value="" key="username"/>
    <field name="password" widget="password" attrs="" id="uuid-0B946E48-1841-11EA-8C34-2EDF490E2E26" key="password" display="Password"/>
    <field value="" key="submit" id="uuid-0B94A854-1841-11EA-8C34-2EDF490E2E26" display="Login" attrs="" widget="submit" name="submit"/>
  </form>
</response>