Instantiate Storyboard from local Swift Package

Hi,

I try to instatiat a ViewController vom a local SPM Package but I always get the error Could not find a storyboard.

let myViewController = UIStoryboard(name: ",yStoryboard", bundle: Bundle(url: Bundle.main.url(forResource: "myModule_myModule", withExtension: "bundle")!)).instantiateViewController(withIdentifier: "MyViewController")

This code works when using it as an remote package. What I'm doing wrong?

Thanks Bernhard