"Unhandled Runtime Error" despite type definition

[deleonio]

My project has no errors related to static code checking with TypeScript. However, the application cannot be run with Snowpack.

To reproduce:

mkdir demo
cd demo
npm i --no-save @leanup/cli@1.1.0-rc.282 @leanup/cli-angularjs@1.1.0-rc.282
npx angularjs create
npm run start:snowpack