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;" uri="" uuid="E8220848-7380-11F0-8D4C-ED49160DF820" key="login" method="post">
    <field display="Username" value="" widget="text" key="username" attrs="" id="uuid-E8223994-7380-11F0-8D4C-ED49160DF820" name="username"/>
    <field display="Password" key="password" widget="password" attrs="" name="password" id="uuid-E82282A0-7380-11F0-8D4C-ED49160DF820"/>
    <field display="Login" value="" key="submit" widget="submit" attrs="" name="submit" id="uuid-E822CBC0-7380-11F0-8D4C-ED49160DF820"/>
  </form>
</response>