ValueError:无法配置处理程序“null”：无法解析Django.utils.log.NullHandler:没有名为NullHand的模块

Question

我在运行python时出错管理运行我所有django项目的服务器。我使用的是django1.6。在

我的项目进行得非常顺利。然后我在我的虚拟环境中为一些实现安装了django子域和django-gcm包，错误开始出现在所有项目中（这可能与我提到的错误有关）。然后我卸载了这些包，但错误仍然存在

我的错误堆栈跟踪是：

    Unhandled exception in thread started by <function wrapper at    0xabcddf4>
Traceback (most recent call last):
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 249, in raise_last_exception
six.reraise(*_exception)
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/__init__.py", line 17, in setup
configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
  File "/home/shivam/virtual/venv/local/lib/python2.7/site-packages/django/utils/log.py", line 71, in configure_logging
logging_config_func(logging_settings)
  File "/usr/lib/python2.7/logging/config.py", line 777, in dictConfig
dictConfigClass(config).configure()
  File "/usr/lib/python2.7/logging/config.py", line 575, in configure
'%r: %s' % (name, e))

ValueError:无法配置处理程序“null”：无法解析django.utils.log.NullHandler”：没有名为NullHandler的模块