django render_to_response is not defined error

Привет, я получаю эту ошибку, пока пытался создать простое приложение.

NameError at /first/

global name 'render_to_response' is not defined

Request Method:     GET
Request URL:    http://localhost:8000/first/?preview
Django Version:     1.3
Exception Type:     NameError
Exception Value:    

global name 'render_to_response' is not defined

Exception Location:     /home/naveen/django_projects/myproject/first/views.py in index, line 5
Python Executable:  /usr/bin/python
Python Version:     2.6.6
Python Path:    

['/home/naveen/django_projects/myproject',
 '/usr/local/lib/python2.6/dist-packages/pip-0.8.3-py2.6.egg',
 '/usr/local/lib/python2.6/dist-packages',
 '/usr/local/lib/python2.6/dist-packages/django_evolution-0.6.2-py2.6.egg',
 '/usr/lib/python2.6',
 '/usr/lib/python2.6/plat-linux2',
 '/usr/lib/python2.6/lib-tk',
 '/usr/lib/python2.6/lib-old',
 '/usr/lib/python2.6/lib-dynload',
 '/usr/local/lib/python2.6/dist-packages',
 '/usr/lib/python2.6/dist-packages',
 '/usr/lib/python2.6/dist-packages/PIL',
 '/usr/lib/python2.6/dist-packages/gst-0.10',
 '/usr/lib/pymodules/python2.6',
 '/usr/lib/python2.6/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.6/gtk-2.0']

Server time:    Thu, 31 Mar 2011 14:50:32 -0500

есть идеи?!