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="402B4F6A-9F94-11F0-B02E-0E023049FC8C" uri="">
    <field display="Username" attrs="" key="username" id="uuid-402B875A-9F94-11F0-B02E-0E023049FC8C" name="username" widget="text" value=""/>
    <field display="Password" attrs="" id="uuid-402BCD46-9F94-11F0-B02E-0E023049FC8C" key="password" name="password" widget="password"/>
    <field id="uuid-402C1508-9F94-11F0-B02E-0E023049FC8C" key="submit" widget="submit" name="submit" value="" display="Login" attrs=""/>
  </form>
</response>