Compilation error when importing enum from node modules in typescript

Hi,

I’m trying to use some enum from a library I made in a Symfony project. The library is made with Vue and typescript, bundled with rollup.

The project is made Symfony 4.2, and the front with Vue 2 and typescript, Webpack Encore version is 1.6.1

The library is a dependency from my project, so I try to import the enum like this: import { MyEnum } from 'myLibrary/src/enum/MyEnum';

And the enum looks like this:

// node_modules/myLibrary/src/enum/MyEnum.ts

export enum MyEnum {
  One = 'one',
  Two = 'two',
  Three = 'three'
}

But when I compile I got this error in console:

ERROR  Failed to compile with 1 errors                                                       4:37:05 PM

Error loading ./node_modules/myLibrary/src/enum/MyEnum.ts

 FIX  To process TypeScript files:
        1. Add Encore.enableTypeScriptLoader() to your webpack.config.js file.

And this error in browser:

Module parse failed: Unexpected token (4:7)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
> export enum MyEnum {
|   One = 'one',
|   Two = 'two'

I obviously already added enableTypeScriptLoader() in webpack.config.js.

If I create the same enum file into my project and import it, it works. And if I import interfaces from the same library, it works too.

I test my library in another project with VueCli and I got no error, so I’m pretty sure it comes from Webpack Encore.

Any idea how to solve this?

Thanks