Babel无法找到模块核心/启动Node.js

Question

I have a Node.js project written by another developer that I am having trouble executing due to Babel being unable (probably) to trace correct paths for module imports:

There is a line in the main.js that reads import Splash from 'core/splash' . The project's main.js file is located in path "project_name/webapp/core/main.js" The "project_name/webapp/core/" directory also contains a file named splash.js but as far as I understand it is not a package since there is no package.json associated with it. Am I right to assume that the import line above is trying to load this file but is failing due to it not being a package or is it simply because I am not understanding the directory structure correctly?
I am executing the main.js using command babel-node .\\webapp\\core\\main.js

The exact error I am receiving is:

Error: Cannot find module 'core/splash'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)

Node.js version v8.11.3, babel-cli version ^6.26.0, Babel installed globally.

Answer 1

If you specify an absolute path in your import statement (ie core/splash ), Node.js will assume you are referencing an npm module in the node_modules directory.

In this example, it will look for a module named core that contains a file splash.js .

If you want to import a module that is part of your own source code (not installed from the npm registry), use a relative path instead.

If main.js and splash.js are located in the same directory core , the correct import statement is:

import Splash from './splash'

The leading ./ tells Node.js: “This is a relative path, starting in the directory of the current module.”