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" uri="" uuid="E4FA73A0-CCD3-11F1-BDB5-3ABB8D6E13F8" key="login">
    <field attrs="" display="Username" id="uuid-E4FAACF8-CCD3-11F1-BDB5-3ABB8D6E13F8" name="username" value="" widget="text" key="username"/>
    <field widget="password" key="password" display="Password" attrs="" name="password" id="uuid-E4FAF618-CCD3-11F1-BDB5-3ABB8D6E13F8"/>
    <field display="Login" attrs="" value="" name="submit" id="uuid-E4FB438E-CCD3-11F1-BDB5-3ABB8D6E13F8" widget="submit" key="submit"/>
  </form>
</response>