Node.js Error: Cannot find module 'request'

问题:

Ok so this is a common error and I HAVE read this node.js: cannot find module 'request'

The request module IS installed in my node_modules. My complete node app is

var r = require("request");


var s = r('http://www.foo.com/');


s.on('data',function(chunk){

    console.log(">>>Data>>> "+chunk);
});


s.on('end', function(){
    console.log(">>>Done!");
})

I run my app by simply calling

node app

But I keep getting the same error

What gives?

My directory structure is

app.js
node_modules
    request
        node_modules
            bl
            combined-stream
            form-data
            hawk
            mime-types
            tough-cookie

The complete error trace is

module.js:340
    throw err;
          ^
Error: Cannot find module 'request'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:362:17)
    at require (module.js:378:17)
    at Object.<anonymous> (/Users/foo/Documents/.../app.js:1:71)
    at Module._compile (module.js:449:26)
    at Object.Module._extensions..js (module.js:467:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.runMain (module.js:492:10)

回答1:

Something looks wrong in your directory structure. I would nuke the node_modules directory and redo the npm command.

It's always a good idea to maintain a package.json file and see the dependencies written out

cd getFoo
npm init # answer the qestions
npm install --save request
node app.js

回答2:

Go to the root folder of your app

cd my-app

Delete folder node_modules

rm -rf node_modules

Reinstall package.json

npm install

Start the server

npm start

回答3:

I had the same problem, and i installed the request package like that: "npm install request --save" and that solved the problem.