npm -i does not install a 'src' directory

[bahtou]

Following the instructions in the README:

npm i --save-dev @types/error-overlay-webpack-plugin

Then in my webpack config I do:

import ErrorOverlayPlugin from 'error-overlay-webpack-plugin';
...
plugins: [
    new ErrorOverlayPlugin(),

When I start the webpack-dev-server I get this error:

TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at adjustEntry (/website/node_modules/error-overlay-webpack-plugin/src/index.js:64:12)
    at /website/node_modules/error-overlay-webpack-plugin/src/index.js:65:26
    at Array.forEach (<anonymous>)
    at adjustEntry (/website/node_modules/error-overlay-webpack-plugin/src/index.js:64:24)
    at /website/node_modules/error-overlay-webpack-plugin/src/index.js:65:26
    at Array.forEach (<anonymous>)
    at adjustEntry (/website/node_modules/error-overlay-webpack-plugin/src/index.js:64:24)
    at /website/node_modules/error-overlay-webpack-plugin/src/index.js:21:7
    at Hook.eval (eval at create (/website/node_modules/tapable/lib/HookCodeFactory.js:19:10), <anonymous>:7:16)

I look into the node_modules/error-overlay-webpack-plugin folder but I only find dist and not src.