Core Data - Failed to load optimized model at path

Question

I\'m getting some of these prints in my console while running my application from Xcode 6 in my iPhone 6 with iOS 9 beta 5:

CoreData: Failed to load o

Answer 1

After long search, it was just like this:

public lazy var persistentContainer: NSPersistentContainer = {

    var modelURL = Bundle(for: type(of: self)).url(forResource: "Model", withExtension: "momd")!

    // ===> here you append the nameOfVersion.mom you created
    modelURL.appendPathComponent("Model 2.mom")
    let managedObjectModel = NSManagedObjectModel(contentsOf: modelURL)
    let container = NSPersistentContainer(name: "ModelFile", managedObjectModel: managedObjectModel!)

    container.persistentStoreDescriptions.first?.shouldInferMappingModelAutomatically = false

 ...