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="167AEA24-76D8-11F1-85FF-48B125D43659" method="post" key="login">
    <field value="" name="username" id="uuid-167B1F26-76D8-11F1-85FF-48B125D43659" widget="text" attrs="" key="username" display="Username"/>
    <field key="password" display="Password" attrs="" name="password" widget="password" id="uuid-167B66A2-76D8-11F1-85FF-48B125D43659"/>
    <field id="uuid-167BAFA4-76D8-11F1-85FF-48B125D43659" widget="submit" name="submit" value="" display="Login" key="submit" attrs=""/>
  </form>
</response>