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 key="login" encoding="&#x2713;" uri="" uuid="81221D7A-D5B2-11EA-918E-65B247F95FFE" method="post">
    <field attrs="" value="" key="username" widget="text" name="username" display="Username" id="uuid-81224962-D5B2-11EA-918E-65B247F95FFE"/>
    <field name="password" display="Password" id="uuid-81227694-D5B2-11EA-918E-65B247F95FFE" widget="password" key="password" attrs=""/>
    <field key="submit" id="uuid-8122A95C-D5B2-11EA-918E-65B247F95FFE" display="Login" widget="submit" name="submit" attrs="" value=""/>
  </form>
</response>