TypeError: require(...).connect is not a function

I recently had  a hard time trying to fix this issue.
I initially wrote these lines below to establish my connection:

var databaseUrl = "localhost/school";
var collections = ["student", "professor"]
var db = require("mongojs").connect(databaseUrl, collections);
var http = require("http");


Now it seems that since 1.x , mongojs no longer support the connect function,
instead we should replace the third line with:


var db = require("mongojs")(databaseUrl, collections);


Source: https://github.com/mafintosh/mongojs/issues/286


 

the default storage engine 'wiredtiger' is not available issue solved

I have created my data/db in the bin folder, for more about the installation watch this tutorial

Now to start mongod, instead of :

mongod --dbpath ./data/db

Do this instead:

mongod --storageEngine=mmapv1 --dbpath ./data/db

Hope it helps:

mongodb unclean shutdown detected

Are you having this error message : mongodb unclean shutdown detected ?
In my system I have my data/db under the bin folder
if you are using linux :

sudo rm /data/db/mongod.lock
sudo mongod --dbpath /data/db --repair
sudo mongod --storageEngine=mmapv1 --dbpath ./data/db

if you are using windows:

Go to your data/db directory:

1. delelte mongod.lock file

2. mongod --dbpath ./data/db --repair

3. mongod --storageEngine=mmapv1 --dbpath ./data/db 

More about the issue here