An error appears (Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value) when I try to add a scene file with the .sks extension to an app playground type project with the .swiftpm extension

The error shown in the picture appears when I try to link the StartScene.sks file to the code

Attached are pictures of the code

Please help me🙏🏻

An error appears (Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value) when I try to add a scene file with the .sks extension to an app playground type project with the .swiftpm extension
 
 
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