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;" uri="" key="login" uuid="ADAE8BAA-2002-11EA-ADF7-98020BBD1946" method="post">
    <field widget="text" key="username" value="" id="uuid-ADAEBD8C-2002-11EA-ADF7-98020BBD1946" name="username" attrs="" display="Username"/>
    <field name="password" display="Password" attrs="" widget="password" key="password" id="uuid-ADAEEDD4-2002-11EA-ADF7-98020BBD1946"/>
    <field name="submit" display="Login" attrs="" widget="submit" value="" key="submit" id="uuid-ADAF2650-2002-11EA-ADF7-98020BBD1946"/>
  </form>
</response>