Typescript ReferenceError: exports is not defined

EDIT:

This answer might not work depending if you’re not targeting es5 anymore, I’ll try to make the answer more complete.

Original Answer

If CommonJS isn’t installed (which defines exports), you have to remove this line from your tsconfig.json:

 "module": "commonjs",

As per the comments, this alone may not work with later versions of tsc. If that is the case, you can install a module loader like CommonJS, SystemJS or RequireJS and then specify that.

Note:

Look at your main.js file that tsc generated. You will find this at the very top:

Object.defineProperty(exports, "__esModule", { value: true });

It is the root of the error message, and after removing "module": "commonjs",, it will vanish.