找不到满足要求的版本pkg-resources == 0.0.0

我的应用已部署在上heroku。

当我通过推送代码时git push heroku master。它给我这个错误

Collecting pkg-resources==0.0.0 (from -r requirements.txt (line 14))
remote:          Could not find a version that satisfies the requirement pkg-resources==0.0.0 (from -r requirements.txt (line 14)) (from versions: )
remote:        No matching distribution found for pkg-resources==0.0.0 (from -r requirements.txt (line 14))
remote:  !     Push rejected, failed to compile Python app.

requirement.txt

amqp==2.1.1
billiard==3.5.0.2
boto==2.42.0
celery==4.0.0
dj-database-url==0.4.1
Django==1.10.2
django-appconf==1.0.2
django-model-utils==2.6
django-storages==1.5.1
djangorestframework==3.4.7
gunicorn==19.6.0
Jinja2==2.8
kombu==4.0.0
MarkupSafe==0.23
optional-django==0.1.0
pep8==1.7.0
pkg-resources==0.0.0
psycopg2==2.6.2
pyflakes==1.3.0
pytz==2016.7
rcssmin==1.0.6
requests==2.12.1
rjsmin==1.0.12
vine==1.1.3
whitenoise==3.2.2

注意：它在我的本地服务器上运行良好。

我的问题是为什么不继续工作heroku而是继续努力local。???