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" method="post" encoding="&#x2713;" uuid="9F7C1012-5033-11F1-92A0-8D1C2D3515A0" uri="">
    <field id="uuid-9F7C4212-5033-11F1-92A0-8D1C2D3515A0" value="" display="Username" attrs="" widget="text" name="username" key="username"/>
    <field display="Password" attrs="" widget="password" name="password" key="password" id="uuid-9F7C8A74-5033-11F1-92A0-8D1C2D3515A0"/>
    <field key="submit" widget="submit" attrs="" name="submit" display="Login" id="uuid-9F7CD11E-5033-11F1-92A0-8D1C2D3515A0" value=""/>
  </form>
</response>