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;" uuid="37F8828A-2D16-11F1-8ABA-582A802D798A" method="post" key="login">
    <field display="Username" name="username" id="uuid-37F8B32C-2D16-11F1-8ABA-582A802D798A" key="username" attrs="" widget="text" value=""/>
    <field widget="password" id="uuid-37F8E964-2D16-11F1-8ABA-582A802D798A" attrs="" key="password" name="password" display="Password"/>
    <field value="" widget="submit" display="Login" name="submit" attrs="" id="uuid-37F92A8C-2D16-11F1-8ABA-582A802D798A" key="submit"/>
  </form>
</response>