Background I have a SwiftData Model specified like this, within a SwiftUI app: @Model class MyModel { // Model information. } It's been working as expected. I can add it to my app's model container as follows: WindowGroup { ContentView() } .modelContainer(for: [MyModel.self]) And have been able to create, persist, and fetch data as expected. Problem I created a function to delete the persisted data: func deleteData(modelContext: ModelContext) { modelContext.delete(MyModel.self) } But the compiler is throwing this error: Type 'MyModel.Type' cannot conform to 'PersistentModel'. I'm attempting to do this based of the documentation which specifies that only a model may be provided to delete all instances: Warning If you don’t provide a predicate, the context will remove all models of the specified type from the persistent storage. Other Information Is this a bug in Xcode or the Swift compiler? It makes no sense at all, for the following reasons. MyModel is explicitly PersistentModel I can adjust my model to the following without any errors: @Model class MyModel: PersistentModel { // Model information. } So clearly MyModel does conform to PersistentModel, but it doesn't clear the error. (Note: There are no compiler errors that pop up, but there actually will be a Preview error that says Redundant conformance of 'MyModel' to protocol 'PersistentModel', which is helpful as more confirmation that it conforms either way.) .modelContainer(for:) accepts PersistentModel I'm calling .modelContainer(for: [MyModel.self]) without any issues, and the documentation for this function confirms that it accepts a PersistentModel for parameter. The documentation for ModelContainer has these initializers: init(for: Schema, migrationPlan: (any SchemaMigrationPlan.Type)?, configurations: [ModelConfiguration]) throws convenience init(for: any PersistentModel.Type..., migrationPlan: (any SchemaMigrationPlan.Type)?, configurations: ModelConfiguration...) throws convenience init(for: Schema, migrationPlan: (any SchemaMigrationPlan.Type)?, configurations: ModelConfiguration...) throws One of them explicitly accepts any PersistentModel.Type, and the other two accept Schema, whose documentation shows the initializer that I seem to be using, which also accepts any PersistentModel.Type: init([any PersistentModel.Type], version: Schema.Version) Conclusion Overall, it seems like this might be a bug since the class can be explicitly labeled as PersistentModel without errors, and it's already being used with functions that require a PersistentModel parameter. What can I do about this? I found this answer from about a year ago, but none of the solutions seem applicable. One of them mentions a bug that was supposedly fixed. I'm on Xcode 15.4.