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 key="login" encoding="&#x2713;" uri="" uuid="25F782EC-7380-11F1-87DF-57FEF8248A5F" method="post">
    <field display="Username" attrs="" widget="text" name="username" key="username" id="uuid-25F7B29E-7380-11F1-87DF-57FEF8248A5F" value=""/>
    <field attrs="" widget="password" display="Password" id="uuid-25F7F77C-7380-11F1-87DF-57FEF8248A5F" name="password" key="password"/>
    <field key="submit" name="submit" value="" id="uuid-25F84344-7380-11F1-87DF-57FEF8248A5F" display="Login" widget="submit" attrs=""/>
  </form>
</response>