npm start giving error in node.js - node.js

Question

i am totally new to node.js and mongodb. I am using the following link: http://cwbuecheler.com/web/tutorials/2013/node-express-mongo/
This procedure worked very fine and got the exact same results. But all of a sudden "npm start" stopped working.
I uninstalled every thing and trying to re-install from step 1 given in this tutorial. when i give the command "npm install -g express" i am not getting any list of http 304's and GETS!! .
As i ignore and continue the procedure, i give the command npm start , but it does not work. the error displayed is shown below
C:\project\nodetest1>npm start
> nodetest1#0.0.0 start C:\project\nodetest1
> node ./bin/www
npm ERR! nodetest1#0.0.0 start: `node ./bin/www`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the nodetest1#0.0.0 start script.
npm ERR! This is most likely a problem with the nodetest1 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./bin/www
npm ERR! You can get their info via:
npm ERR! npm owner ls nodetest1
npm ERR! There is likely additional logging output above.
npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! cwd C:\project\nodetest1
npm ERR! node -v v0.10.33
npm ERR! npm -v 1.4.28
npm ERR! syscall spawn
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! nodetest1#0.0.0 start: `node ./bin/www`
npm ERR! Exit status -1
npm ERR!
npm ERR! Failed at the nodetest1#0.0.0 start script.
npm ERR! This is most likely a problem with the nodetest1 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./bin/www
npm ERR! You can get their info via:
npm ERR! npm owner ls nodetest1
npm ERR! There is likely additional logging output above.
npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\ProgramFiles\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! cwd C:\project\nodetest1
npm ERR! node -v v0.10.33
npm ERR! npm -v 1.4.28
npm ERR! code ELIFECYCLE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! C:\project\nodetest1\npm-debug.log
npm ERR! not ok code 0
Please help . Thanks in advance.

Answer 1

The error suggests that the ./bin/www directory is not found. Paths specified with a dot are relative to the current directory, so your current directory has to be C:/project/nodetest1 for npm start to work in this case.

Answer 2

There are several issues here.
First, you should upgrade to a newer npm, as the npm that ships with even the latest version of node is out of date. To upgrade npm on Windows, follow the instructions here:
https://github.com/npm/npm/wiki/Troubleshooting#upgrading-on-windows
Second, you may need to do some more troubleshooting on your own to find the problem. npm start just follows the instructions in the package.json. The package.json is telling npm that start means "run node ./bin/www".
What happens when you run that same script from the command line?
cd C:\project\nodetest1
node ./bin/www
Does the file 'bin/www' exist? Is node installed and in your path? These are the issues that you will have to troubleshoot.

Answer 3

Delete the node_modules folder.
Run npm install
And then, re-run your command npm start

Answer 4

The package.json is telling npm that start means "run node ./bin/www".
**but packege.json predefined staring script is npm run serve **
please try this one.
npm run serve
"start": "concurrently \"npm run build:watch\" \"npm run serve\""

Answer 5

One of the possible situation causing this problem might be that the command npm start is giving error is because the current directory that you are in right now and the react app directory is not same. Try navigating your command prompt to the react app location using cd ./your react app location/