Webpack. Почему возникает ошибка "Module parse failed You may need an appropriate loader to handle this file type"?

Возможно, тут проблема в
module: {
rules: [
{
test: /\.js?$/, <----тут поменять на test: /\.(js|jsx)$/,
include: /\/frontend/,
loader: "babel-loader",
options: {
presets: [['es2015', {modules: false}], "es2016", "es2017", "react"],
plugins: ['transform-runtime'],
}
},