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="140EFAD4-1846-11EA-A170-6CDF490E2E26" uri="" method="post" key="login" encoding="&#x2713;">
    <field widget="text" name="username" attrs="" value="" key="username" id="uuid-140F2B4E-1846-11EA-A170-6CDF490E2E26" display="Username"/>
    <field attrs="" id="uuid-140F57D6-1846-11EA-A170-6CDF490E2E26" key="password" display="Password" name="password" widget="password"/>
    <field name="submit" widget="submit" attrs="" display="Login" value="" key="submit" id="uuid-140F8CF6-1846-11EA-A170-6CDF490E2E26"/>
  </form>
</response>