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 method="post" uuid="F852D0F6-2705-11F1-B4DA-758F0C0019C7" uri="" encoding="&#x2713;" key="login">
    <field id="uuid-F85305C6-2705-11F1-B4DA-758F0C0019C7" display="Username" key="username" attrs="" name="username" widget="text" value=""/>
    <field key="password" display="Password" id="uuid-F8534AAE-2705-11F1-B4DA-758F0C0019C7" widget="password" name="password" attrs=""/>
    <field widget="submit" value="" attrs="" name="submit" display="Login" key="submit" id="uuid-F853950E-2705-11F1-B4DA-758F0C0019C7"/>
  </form>
</response>