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Extend stimulus controller - base class not found

Thorsten Claus asked in Javascript

I want to extend the Stimulus controller to get some often used method in one place, like this:
import {Controller} from "@hotwired/stimulus"

./controllers/base.js
export default class Base extends Controller {
defineSettings() {...}
}

Then I want to use this 'base' in my inherited controller, like a normal controller:

./controllers/stream_controller.js
import Base from "./base.js"

export default class extends Base {
initialized() {...}

}

On my dev machine this works (after assets:precompile) but in production mode the 'base' class is not found:
"Error: Unable to resolve specifier 'base' imported from stream_controller..."

I am totally unsure if this possible and how to "correct" set my imports.

try to stackoverflow it, i saw the same issue on that

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