crontab & kronos error

crontab_error.py

#settings/common.py
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'sshsapp',
    'django_crontab',
    'kronos',
]

#settings/prod_aws.py (배포세팅)
INSTALLED_APPS += ['storages']

#ssapp/cron.py
@kronos.register('*/1 * * * *') #1분마다
def my_scheduled_job():
    Post2.objects.create(extext="kkk")
    dday=datetime.date.today()
    yday=dday+datetime.timedelta(days=-1)
    tday=dday+datetime.timedelta(days=1)
    fai="등록된 메뉴가 없습니다."
    fai2="등록된 사진이 없습니다."
    ## 이후 스크래핑 소스
 
#requirements.txt
appdirs==1.4.3
awscli==1.11.85
awsebcli==3.10.1
beautifulsoup4==4.6.0
blessed==1.14.2
boto==2.46.1
boto3==1.4.4
botocore==1.5.48
cement==2.8.2
colorama==0.3.7
Django==1.10
django-bootstrap3==8.2.3
django-crontab==0.7.1
django-kronos==1.0
django-storages==1.5.2
docker-py==1.7.2
dockerpty==0.4.1
docopt==0.6.2
docutils==0.13.1
jmespath==0.9.2
olefile==0.44
packaging==16.8
pathspec==0.5.0
Pillow==4.1.1
psycopg2==2.7.1
pyasn1==0.2.3
pyparsing==2.2.0
python-crontab==2.2.2
python-dateutil==2.6.0
PyYAML==3.12
requests==2.9.1
rsa==3.4.2
s3transfer==0.1.10
semantic-version==2.5.0
six==1.10.0
tabulate==0.7.5
termcolor==1.1.0
wcwidth==0.1.7
websocket-client==0.40.0


#error log

[2017-05-16T04:52:57.901Z] INFO  [2060]  - [Application update app-1943-170516_135237@25/AppDeployStage0/EbExtensionPostBuild/Infra-EmbeddedPostBuild/postbuild_0_xzeroapp/Test for Command 01_migrate] : Completed activity. Result:
  
  Completed successfully.
[2017-05-16T04:52:57.902Z] INFO  [2060]  - [Application update app-1943-170516_135237@25/AppDeployStage0/EbExtensionPostBuild/Infra-EmbeddedPostBuild/postbuild_0_xzeroapp/Command 01_migrate] : Starting activity...
[2017-05-16T04:52:58.182Z] INFO  [2060]  - [Application update app-1943-170516_135237@25/AppDeployStage0/EbExtensionPostBuild/Infra-EmbeddedPostBuild/postbuild_0_xzeroapp/Command 01_migrate] : Activity execution failed, because: Traceback (most recent call last):
  File "manage.py", line 22, in <module>
  execute_from_command_line(sys.argv)
  File "/opt/python/run/venv/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
  utility.execute()
  File "/opt/python/run/venv/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 341, in execute
  django.setup()
  File "/opt/python/run/venv/local/lib/python3.4/site-packages/django/__init__.py", line 27, in setup
  apps.populate(settings.INSTALLED_APPS)
  File "/opt/python/run/venv/local/lib/python3.4/site-packages/django/apps/registry.py", line 85, in populate
  app_config = AppConfig.create(entry)
  File "/opt/python/run/venv/local/lib/python3.4/site-packages/django/apps/config.py", line 90, in create
  module = import_module(entry)
  File "/opt/python/run/venv/lib64/python3.4/importlib/__init__.py", line 109, in import_module
  return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
  File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
  File "<frozen importlib._bootstrap>", line 2224, in _find_and_load_unlocked
  ImportError: No module named 'django_crontab'
   (ElasticBeanstalk::ExternalInvocationError)