无语，碰到这样的报错，只能去除app，或者查看下是不是少了个逗号

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001DB1D7557

E:\myblog>python manage.py runserver
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001DB1D7557B8>
Traceback (most recent call last):
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\core\management\commands\runserver.py", line 113, in inner_run
    autoreload.raise_last_exception()
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 249, in raise_last_exception
    six.reraise(*_exception)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\apps\registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\apps\config.py", line 90, in create
    module = import_module(entry)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 956, in _find_and_load_unlocked
ImportError: No module named 'mytemplatetags'
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001ED342667B8>
Traceback (most recent call last):
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\core\management\commands\runserver.py", line 113, in inner_run
    autoreload.raise_last_exception()
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 249, in raise_last_exception
    six.reraise(*_exception)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\apps\registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\site-packages\django\apps\config.py", line 90, in create
    module = import_module(entry)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python35\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 956, in _find_and_load_unlocked
ImportError: No module named 'mytemplatetags'

**错误原因：**mytemplatetags模块没有去除干净，其他文件中还存在引用。 
解决措施：在settings.py的INSTALLED_APP中吧mytemplatetags去掉就ok