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="" method="post" key="login" uuid="8CAA854A-8ECC-11F1-8535-6BC7F5CBB814">
    <field id="uuid-8CAAB754-8ECC-11F1-8535-6BC7F5CBB814" display="Username" attrs="" name="username" key="username" widget="text" value=""/>
    <field display="Password" attrs="" id="uuid-8CAAFBC4-8ECC-11F1-8535-6BC7F5CBB814" widget="password" key="password" name="password"/>
    <field id="uuid-8CAB47FA-8ECC-11F1-8535-6BC7F5CBB814" attrs="" display="Login" value="" widget="submit" name="submit" key="submit"/>
  </form>
</response>