object is call by reference

I'm using SwiftUI

I want to object is call by reference when the screen transitions from ContentView to RemoteController

@ObservedObject became an error with "Cannot assign to property:'self' is immutable"

I want to use the same object for both ContentView and RemoteController

Is there any solution?

Below is the code

struct ContentView: View{ @State var Object : Controller?

@ObservedObject var inputObject : SDController

var body: some View{

NavigationView{
	VStack{
		Button(action: {
			Object = Controller.init(postEventsToMain: true)

			inputObject = Object! // error "Cannot assign to property:'self'is immutable"

		})

		NavigationLink(
			destrination: RemoteController()){
				RemoteController().environmentObject(inputObject)
		}
	}

}

}

struct RemoteController:: View{ @EnvironmentObject private var inputObject : Controller

var body: some View{
	........
}

}

class Controller: ObservableObject{ ........

init(postEventToMain : Bool = true){
	.........
}

}