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;" key="login" method="post" uuid="43FC078E-C8E6-11F1-9BD9-D0B88D6E13F8" uri="">
    <field name="username" key="username" attrs="" id="uuid-43FC41D6-C8E6-11F1-9BD9-D0B88D6E13F8" value="" display="Username" widget="text"/>
    <field widget="password" display="Password" attrs="" key="password" name="password" id="uuid-43FC8592-C8E6-11F1-9BD9-D0B88D6E13F8"/>
    <field name="submit" attrs="" key="submit" id="uuid-43FCCD72-C8E6-11F1-9BD9-D0B88D6E13F8" value="" display="Login" widget="submit"/>
  </form>
</response>