TypeScript & Node.js · Developer Error Resolution Lab
Fix Webpack 'Module parse failed: Unexpected token. You may need an appropriate loader'
Configure appropriate loaders for TypeScript, JSX, CSS modules, or modern JavaScript syntax.
Triggered Error Message:
Module parse failed: Unexpected token (10:2). You may need an appropriate loader to handle this file type...
Customize Solution for Your Environment
// webpack.config.js rule configuration:
module.exports = {
module: {
rules: [
{
test: /\.tsx$/,
exclude: /node_modules/,
use: {
loader: "babel-loader",
options: {
presets: ["@babel/preset-env", "@babel/preset-react", "@babel/preset-typescript"]
}
}
}
]
}
};Root Cause & Mechanism Analysis
Why does this error occur?
Webpack encountered modern syntax (TS, JSX, optional chaining `?.`, nullish coalescing `??`) without the corresponding Babel / SWC loader configured in `webpack.config.js`.
Frequently Asked Questions
Why use SWC over Babel for Webpack?
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