title: “TemplateDoesNotExist” after package installed
body: <p>Could any one help me to figure out why ? </p>
  
  <p>I just followed the structure of tutorial , and installed the package called django-polls to my project called mysite successfully. But it returned "TemplateDoesNotExist at /polls/" after running the server.</p>
  
  <p>Following is What I have done:</p>
  
  <pre><code>1.pip install /django-polls/dist/django-polls-0.1.tar.gz
  2.modifed the settings.py in mysite project
  3.modifed the urls.py in mysite project
  4.python manage.py runserver
  </code></pre>
  
  <h1>settings.py in mysite project:</h1>
  
  <pre><code> ...
   TEMPLATE_DEBUG = True
   ...
  # Application definition
  INSTALLED_APPS = (
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.messages',
      'django.contrib.staticfiles',
      'polls',
  )
  ...
  ROOT_URLCONF = 'mysite.urls'
  ...
  # Static files (CSS, JavaScript, Images)
  # https://docs.djangoproject.com/en/1.7/howto/static-files/
  
  STATIC_URL = '/static/'
  TEMPLATES = [
      {
          'BACKEND': 'django.template.backends.django.DjangoTemplates',
          'DIRS': [os.path.join(BASE_DIR, 'templates')],
          'APP_DIRS': True,
          'OPTIONS': {
          'context_processors': [
              'django.template.context_processors.debug',
              'django.template.context_processors.request',
              'django.contrib.auth.context_processors.auth',
              'django.contrib.messages.context_processors.messages',
              ],
          },
      },
  ]
  
  TEMPLATE_LOADERS = (
      'django.template.loaders.filesystem.Loader',
      'django.template.loaders.app_directories.Loader', # &lt;--
  )
  </code></pre>