找不到模块 node.js

Question

I created a new folder on my desktop and in that folder I put a file named app.js containing the following code.

function sayHello(name) {
    console.log("Hello" + name);
}

sayHello("Noah")

In the terminal I entered node app.js and was returned the following.

module.js:549
throw err;
^

Error: Cannot find module '/home/noah/app.js'
at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Function.Module.runMain (module.js:693:10)
at startup (bootstrap_node.js:191:16)
at bootstrap_node.js:612:3

I followed a Digital Ocean tutorial to get everything installed and everything worked as described. Am I putting my files in the wrong location?

Answer 1

try this in your terminal

$ cd /home/noah
$ node app.js

or second option

$ node /home/noah/app.js

I prefer the first option. Good luck.

Answer 2

Open the folder that contains your app.js file and click right mouse button + SHIFT. Then select 'Open command window here' inorder to open your terminal.

In the terminal check your node and npm versions to make sure both are installed correctly in your computer

    $ node -v
    $ npm -v

Then

    $ npm install

to download and install necessary node modules to your app.

Finally try,

    $ node app 

or

    $ node app.js

Answer 3

I was in the wrong directory. Using the desktop on Ubuntu was my problem, I will need to figure out how to store and create my files in the user directory to save myself from using cd frequently.