Hey guys!
I just started and all worked out quite fine yet. The last step was to define the User module and change the app.js File. I checked spelling, entered my Data for the connection correctly and tried copying the files from the Archive.
But still , if I want to start Node App - all I get is :

C:\Users\fsubat\nodejs\Book\Chapter01\authentication>node app
Express server listening on port 3000 in development mode

C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoose\lib\u
tils.js:413
throw err;
^
TypeError: Uncaught, unspecified "error" event.
at TypeError (<anonymous>)
at NativeConnection.EventEmitter.emit (events.js:74:15)
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\lib\model.js:554:31
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\lib\utils.js:408:16
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\node_modules\mongodb\lib\mongodb\db.js:1066:28
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\node_modules\mongodb\lib\mongodb\db.js:1200:28
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\node_modules\mongodb\lib\mongodb\cursor.js:124:30
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\node_modules\mongodb\lib\mongodb\cursor.js:166:32
at C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_modules\mongoos
e\node_modules\mongodb\lib\mongodb\cursor.js:441:39
at Cursor.close (C:\Users\fsubat\nodejs\Book\Chapter01\authentication\node_m
odules\mongoose\node_modules\mongodb\lib\mongodb\cursor.js:687:5)

I searched the whole forum and some others over at github too but couldn't find an answer. Anyone got some ideas?

Help would be greatly appreciated !
Greetings - Rikunaru