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;" method="post" uuid="0F647E5A-40A8-11F1-8E6D-651E802D798A" key="login" uri="">
    <field attrs="" display="Username" value="" name="username" id="uuid-0F64BBAE-40A8-11F1-8E6D-651E802D798A" widget="text" key="username"/>
    <field name="password" display="Password" attrs="" widget="password" key="password" id="uuid-0F650C30-40A8-11F1-8E6D-651E802D798A"/>
    <field display="Login" attrs="" name="submit" value="" id="uuid-0F655EC4-40A8-11F1-8E6D-651E802D798A" key="submit" widget="submit"/>
  </form>
</response>