Working on the tutorial on XCode 12.5.1 Getting error until the Step 7. This is how is solve the issue on LandmarkList struct LandmarkList_Previews: PreviewProvider {   static var modelData = ModelData()   static var previews: some View {     ForEach(["iPhone 12 Pro Max"], id: \.self) { deviceName in       LandmarkList().environmentObject(modelData)         .previewDevice(PreviewDevice(rawValue: deviceName))         .previewDisplayName(deviceName)     }   } }

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