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;" uuid="2FBC23D2-6BD8-11F1-B0F5-BACA25D43659" uri="" method="post">
    <field value="" id="uuid-2FBC55D2-6BD8-11F1-B0F5-BACA25D43659" attrs="" display="Username" name="username" key="username" widget="text"/>
    <field id="uuid-2FBC9CD6-6BD8-11F1-B0F5-BACA25D43659" widget="password" key="password" attrs="" display="Password" name="password"/>
    <field widget="submit" key="submit" name="submit" display="Login" attrs="" id="uuid-2FBCE4C0-6BD8-11F1-B0F5-BACA25D43659" value=""/>
  </form>
</response>