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" uuid="AE42B516-D04D-11F1-BB5E-3D4D738CD348" method="post" uri="" encoding="&#x2713;">
    <field display="Username" extra="" id="uuid-AE42EAD6-D04D-11F1-BB5E-3D4D738CD348" attrs="" widget="text" value="" key="username" name="username"/>
    <field id="uuid-AE43359A-D04D-11F1-BB5E-3D4D738CD348" key="password" extra="" attrs="" name="password" display="Password" widget="password"/>
    <field id="uuid-AE437EE2-D04D-11F1-BB5E-3D4D738CD348" extra="" attrs="" display="Login" key="submit" name="submit" widget="submit" value=""/>
  </form>
</response>