"TypeError: Cannot read property 'text' of undefined" during build

[YuriGal]

I've upgraded my clockface project with SDK types (converted to Typescript). Now during build I am getting this error:

> clean-and-smart-pre-atlas@1.0.0 build /Users/ygalanter/Documents/Github Personal/Clean-Smart-Plus/clockfaces/pre-atlas
> fitbit-build

[09:43:05][error][app] TypeError: Cannot read property 'text' of undefined
    Details:
        code: PLUGIN_ERROR
        hook: transform
        id: /Users/ygalanter/Documents/Github Personal/Clean-Smart-Plus/clockfaces/pre-atlas/app/index.ts
        watchFiles: /Users/ygalanter/Documents/Github Personal/Clean-Smart-Plus/clockfaces/pre-atlas/app/index.ts

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! clean-and-smart-pre-atlas@1.0.0 build: `fitbit-build`
npm ERR! Exit status 1

It doesn't point to any line in my code and AFAIK all every element that uses .text property is defined.
clockface_project.zip

[SHaTRO]

I was seeing the same exact error, even with a relatively empty index.ts file.
This was resolved by not installing any "typescript" dev dependency and using the following tsconfig.json file at the top of the project:

{
  "extends": "./node_modules/@fitbit/sdk/sdk-tsconfig.json"
}