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;" key="login" method="post" uri="" uuid="B04744D6-2886-11F1-AFA4-705A1ABF1312">
    <field id="uuid-B0477028-2886-11F1-B1D3-705A1ABF1312" display="Username" name="username" widget="text" key="username" attrs="" value=""/>
    <field id="uuid-B047BC22-2886-11F1-B1D3-705A1ABF1312" display="Password" name="password" key="password" widget="password" attrs=""/>
    <field name="submit" display="Login" id="uuid-B047E8E6-2886-11F1-B1D3-705A1ABF1312" value="" attrs="" widget="submit" key="submit"/>
  </form>
</response>