Couldn't connect to server 127.0.0.1:27017 connection attempt failed MongoDB

Question

I am working on Ubuntu OS 16.04. I am starting mongodb using commands:: sudo service mongod start and then mongo

It generated this error for m

Answer 1

On MacOS , I executed the 4th step of this https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x-tarball/

tutorial with sudo

sudo mongod --dbpath /usr/local/var/mongodb --logpath /usr/local/var/log/mongodb/mongo.log --fork

and It worked!