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;" uuid="4BE5FBAC-A28D-11EA-883C-51F1490E2E26" key="login" method="post" uri="">
    <field widget="text" attrs="" key="username" value="" id="uuid-4BE62B4A-A28D-11EA-883C-51F1490E2E26" name="username" display="Username"/>
    <field widget="password" key="password" attrs="" id="uuid-4BE66010-A28D-11EA-883C-51F1490E2E26" display="Password" name="password"/>
    <field attrs="" key="submit" id="uuid-4BE69B16-A28D-11EA-883C-51F1490E2E26" name="submit" display="Login" value="" widget="submit"/>
  </form>
</response>