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;" key="login" uri="" method="post" uuid="0D957F5E-1998-11EA-809B-6E1A4A0E2E26">
    <field attrs="" id="uuid-0D95AECA-1998-11EA-809B-6E1A4A0E2E26" key="username" value="" display="Username" name="username" widget="text"/>
    <field attrs="" key="password" id="uuid-0D95DF44-1998-11EA-809B-6E1A4A0E2E26" display="Password" name="password" widget="password"/>
    <field name="submit" widget="submit" attrs="" value="" id="uuid-0D961676-1998-11EA-809B-6E1A4A0E2E26" key="submit" display="Login"/>
  </form>
</response>