Why can't TypeScript recognise installed TypeScript node_modules?

Question

This problem has long bothered me but I am at a loss as to why. I seem to always be fighting with node_modules. This isn't a @types issue. I am trying to use TypeScript NPM Libraries which already have types.

A great example of this is font awesome. I follow the guide.

npm install @fortawesome/fontawesome-svg-core --save

It tell me that I should then go ahead and configure it using this syntax.

import { library, dom } from '@fortawesome/fontawesome-svg-core';

To which TypeScript informs me that this isn't a module.

I always have to resort to dirty paths like this:

import { library, dom } from '../node_modules/@fortawesome/fontawesome-svg-core/index';

Why does this work for everyone apart from myself?

Here is my tsconfig

{
    "compileOnSave": true,
    "compilerOptions": {
        "sourceMap": true,
        "allowJs": false,
        "allowUnreachableCode": false,
        "allowUnusedLabels": false,
        "declaration": false,
        "declarationMap": false,
        "diagnostics": true,
        "removeComments": true,
        "module": "es6",
        "target": "es5",
        "strict": false
    },
    "include": [
        "src/**/*"
    ]
}

Try adding "moduleResolution": "node" to compilerOptions — Explosion Pills
– Explosion Pills, Commented Sep 14, 2018 at 17:00

Explosion Pills · Accepted Answer · 2018-09-14 17:21:59Z

1

With the "module": "es6" setting you have ES6 module generation. If your module is not node, TypeScript will default to Classic for module resolution. See: https://www.typescriptlang.org/docs/handbook/compiler-options.html

See: https://www.typescriptlang.org/docs/handbook/module-resolution.html -- which explains how Classic and Node module resolution work. You want "moduleResolution": "node" to import from node_modules the way you want.

You actually don't need module since target: ES5 will make module default to es6. You might want to revisit your setting for target.

answered Sep 14, 2018 at 17:21

Explosion Pills

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