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 uri="" encoding="&#x2713;" key="login" method="post" uuid="816366AE-CA6B-11F1-8BAF-19CE8D6E13F8">
    <field key="username" id="uuid-81639B60-CA6B-11F1-8BAF-19CE8D6E13F8" value="" display="Username" attrs="" name="username" widget="text"/>
    <field display="Password" id="uuid-8163E49E-CA6B-11F1-8BAF-19CE8D6E13F8" key="password" widget="password" name="password" attrs=""/>
    <field display="Login" value="" id="uuid-81642CEC-CA6B-11F1-8BAF-19CE8D6E13F8" key="submit" widget="submit" name="submit" attrs=""/>
  </form>
</response>