All credits for the code go to @iSplasher

This npm package was created based on answer from issue with @parcel/transformer-typescript-tsc.

Until it's not resolved, this package might be handy. It allows you to see the exact line of error in your sourcemaps.

Usage

1. Firstly, install the package:

npm i --save-dev parcel-transformer-tsc-sourcemaps

2. Then, in your .parcelrc file replace your "@parcel/transformer-typescript-tsc" with "parcel-transformer-tsc-sourcemaps"

{
	"transformers": {
    	"*.{ts,tsx}": ["parcel-transformer-tsc-sourcemaps"]
  	}
}

3. And that's it! Now parcel will show the exact line in your sourcemap, where the error is