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="BF18406A-1996-11EA-9DF9-80C547F95FFE" method="post" encoding="&#x2713;" uri="" key="login">
    <field value="" id="uuid-BF1870DA-1996-11EA-9DF9-80C547F95FFE" key="username" display="Username" name="username" widget="text" attrs=""/>
    <field key="password" display="Password" name="password" id="uuid-BF189ABA-1996-11EA-9DF9-80C547F95FFE" attrs="" widget="password"/>
    <field id="uuid-BF18C63E-1996-11EA-9DF9-80C547F95FFE" value="" display="Login" key="submit" name="submit" attrs="" widget="submit"/>
  </form>
</response>