[mongodb] MongoDb shuts down with Code 100

I kept getting the following error when I tried to start mongodb (on mac os).

"shutting down with code:100"

I was using the following command:

./mongod --dbpath=~/mongo-data

The fix for me was that I didn't need the "=" sign and this was causing the error. So I did

./mongod --dbpath ~/mongo-data

Just wanted to throw this out there because the error in no way specifies that this is the problem. I almost removed the contents of the ~/mongo-data directory to see if that helped. Glad I remembered that cli args sometimes do not use the "=" sign.