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="3DC64E30-1991-11EA-9C91-FB070BBD1946" key="login" uri="" method="post" encoding="&#x2713;">
    <field widget="text" display="Username" attrs="" id="uuid-3DC67FD6-1991-11EA-9C91-FB070BBD1946" key="username" name="username" value=""/>
    <field key="password" attrs="" id="uuid-3DC6ADF8-1991-11EA-9C91-FB070BBD1946" display="Password" widget="password" name="password"/>
    <field name="submit" value="" attrs="" id="uuid-3DC6E3CC-1991-11EA-9C91-FB070BBD1946" display="Login" widget="submit" key="submit"/>
  </form>
</response>