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SOLVED: Readonly database Error when running on physical device, works on Simulator

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@evenpartour  

I was successfully learning SwiftData on the Simulator after following Paul's guide on seeding a database here: https://www.hackingwithswift.com/quick-start/swiftdata/how-to-pre-populate-an-app-with-an-existing-swiftdata-database

My code is as follows in ContentView.swift

import SwiftUI
import SwiftData

@main
struct SomeApp: App {
    let container: ModelContainer
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .modelContainer(container)
    }
    init() {
        do {
            guard let storeURL = Bundle.main.url(forResource: "Galaxy", withExtension: "store") else {
                fatalError("Failed to find store")
            }

            let config = ModelConfiguration(url: storeURL)
            container = try ModelContainer(for: Galaxy.self, configurations: config)
        } catch {
            fatalError("Failed to create model container: \(error)")
        }
    }
}

Below is the error I receive when running on a physical device. It works just fine on the Simulator. I think it makes sense given how strict Apple is our file system permissions, I just can't figure out the error... to be clear, I don't want it to be in read only mode....

I think this is the important line: NSUnderlyingException=error during SQL execution : attempt to write a readonly database, reason=error during SQL execution : attempt to write a readonly database}

THANKS IN ADVANCE!

CoreData: error: Executing as effective user 501 CoreData: error: Information for /private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store CoreData: error: --------------------------- CoreData: error: File Device ID: 0 CoreData: error: Device ID: 16777225 CoreData: error: File Size: 700416 bytes CoreData: error: File inode: 808653 CoreData: error: File user ID: 33 CoreData: error: File group ID: 33 CoreData: error: File Permissions:
CoreData: error: - CoreData: error: 644 CoreData: error: file is not a symbolic link CoreData: error: Information for file system CoreData: error: --------------------------- CoreData: error: File system type: 0x1a CoreData: error: File system flags: 0x14809098 CoreData: error: MNT_JOURNALED CoreData: error: Total data blocks: 31215429 CoreData: error: Free data blocks: 10239230 CoreData: error: Free blocks for nonsuperuser: 10239230 CoreData: error: Total i-nodes: 409733646 CoreData: error: File system ID: 0x1000009, 0x1a CoreData: error: Free i-nodes: 409569200 CoreData: error: Owner UID: 0 CoreData: error: Filesystem type name: apfs CoreData: error: Mount on name: /private/var CoreData: error: Mount from name: /dev/disk1s2 CoreData: fault: Attempt to add read-only file at path file:///private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store read/write. Adding it read-only instead. This will be a hard error in the future; you must specify the NSReadOnlyPersistentStoreOption. CoreData: error: Executing as effective user 501 CoreData: error: Information for /private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store CoreData: error: --------------------------- CoreData: error: File Device ID: 0 CoreData: error: Device ID: 16777225 CoreData: error: File Size: 700416 bytes CoreData: error: File inode: 808653 CoreData: error: File user ID: 33 CoreData: error: File group ID: 33 CoreData: error: File Permissions:
CoreData: error: - CoreData: error: 644 CoreData: error: file is not a symbolic link CoreData: error: Information for file system CoreData: error: --------------------------- CoreData: error: File system type: 0x1a CoreData: error: File system flags: 0x14809098 CoreData: error: MNT_JOURNALED CoreData: error: Total data blocks: 31215429 CoreData: error: Free data blocks: 10239230 CoreData: error: Free blocks for nonsuperuser: 10239230 CoreData: error: Total i-nodes: 409733646 CoreData: error: File system ID: 0x1000009, 0x1a CoreData: error: Free i-nodes: 409569200 CoreData: error: Owner UID: 0 CoreData: error: Filesystem type name: apfs CoreData: error: Mount on name: /private/var CoreData: error: Mount from name: /dev/disk1s2 CoreData: error: Executing as effective user 501 CoreData: error: Information for /private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store CoreData: error: --------------------------- CoreData: error: File Device ID: 0 CoreData: error: Device ID: 16777225 CoreData: error: File Size: 700416 bytes CoreData: error: File inode: 808653 CoreData: error: File user ID: 33 CoreData: error: File group ID: 33 CoreData: error: File Permissions:
CoreData: error: - CoreData: error: 644 CoreData: error: file is not a symbolic link CoreData: error: Information for file system CoreData: error: --------------------------- CoreData: error: File system type: 0x1a CoreData: error: File system flags: 0x14809098 CoreData: error: MNT_JOURNALED CoreData: error: Total data blocks: 31215429 CoreData: error: Free data blocks: 10239230 CoreData: error: Free blocks for nonsuperuser: 10239230 CoreData: error: Total i-nodes: 409733646 CoreData: error: File system ID: 0x1000009, 0x1a CoreData: error: Free i-nodes: 409569200 CoreData: error: Owner UID: 0 CoreData: error: Filesystem type name: apfs CoreData: error: Mount on name: /private/var CoreData: error: Mount from name: /dev/disk1s2 error: Executing as effective user 501 error: Information for /private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store error: --------------------------- error: File Device ID: 0 error: Device ID: 16777225 error: File Size: 700416 bytes error: File inode: 808653 error: File user ID: 33 error: File group ID: 33 error: File Permissions: error: - error: 644 error: file is not a symbolic link error: Information for file system error: --------------------------- error: File system type: 0x1a error: File system flags: 0x14809098 error: MNT_JOURNALED error: Total data blocks: 31215429 error: Free data blocks: 10239230 error: Free blocks for nonsuperuser: 10239230 error: Total i-nodes: 409733646 error: File system ID: 0x1000009, 0x1a error: Free i-nodes: 409569200 error: Owner UID: 0 error: Filesystem type name: apfs error: Mount on name: /private/var error: Mount from name: /dev/disk1s2 fault: Attempt to add read-only file at path file:///private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store read/write. Adding it read-only instead. This will be a hard error in the future; you must specify the NSReadOnlyPersistentStoreOption. CoreData: Attempt to add read-only file at path file:///private/var/containers/Bundle/Application/9D5150DC-82DD-4220-9898-7438EBA362B3/SomeApp.app/Galaxy.store read/write. Adding it read-only instead. This will be a hard error in the future; you must specify the NSReadOnlyPersistentStoreOption.

3      

@evenpartour  

Answer is on StackOverflow: https://stackoverflow.com/questions/77407501/how-to-pre-populate-an-app-with-a-read-only-store-located-in-the-apps-bundle

3      

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