Master Data: The repository cannot contain object instances (Cocoa Error: 134020)

Question

This is the strangest mistake. The Internet suggests this is a problem with Tiger targeting; except that I am actually targeting iOS 3 and 4.

Error Domain=NSCocoaErrorDomain Code=134020 "The operation couldn\u2019t be completed. (Cocoa error 134020.)" UserInfo=0xc502350 {NSAffectedObjectsErrorKey=<PartRecommendation: 0x6a113e0> (entity: PartRecommendation; id: 0x6a0d0e0 <x-coredata:///PartRecommendation/tAE2B5BA2-44FD-4B62-95D7-5B86EBD6830014> ; data: {
    "_rkManagedObjectSyncStatus" = 0;
    name = "Thin canopy cover";
    part = nil;
    partRecommendationId = 6;
    partType = "0x6a07f40 <x-coredata:///PartType/tAE2B5BA2-44FD-4B62-95D7-5B86EBD683003>";
}), NSUnderlyingException=Store <NSSQLCore: 0x5f3b4c0> cannot hold instances of entity (<NSEntityDescription: 0x6d2e5d0>) name PartRecommendation, managedObjectClassName PartRecommendation, renamingIdentifier PartRecommendation, isAbstract 0, superentity name PartOption, properties {
    "_rkManagedObjectSyncStatus" = "(<NSAttributeDescription: 0x6d37550>), name _rkManagedObjectSyncStatus, isOptional 0, isTransient 0, entity PartRecommendation, renamingIdentifier _rkManagedObjectSyncStatus, validation predicates (\n), warnings (\n), versionHashModifier (null), attributeType 100 , attributeValueClassName NSNumber, defaultValue 0";
    name = "(<NSAttributeDescription: 0x6d37c10>), name name, isOptional 1, isTransient 0, entity PartRecommendation, renamingIdentifier name, validation predicates (\n), warnings (\n), versionHashModifier (null), attributeType 700 , attributeValueClassName NSString, defaultValue (null)";
    part = "(<NSRelationshipDescription: 0x6d2e660>), name part, isOptional 1, isTransient 0, entity PartRecommendation, renamingIdentifier part, validation predicates (\n), warnings (\n), versionHashModifier (null), destination entity Part, inverseRelationship recommendation, minCount 1, maxCount 1";
    partRecommendationId = "(<NSAttributeDescription: 0x6d2e6d0>), name partRecommendationId, isOptional 1, isTransient 0, entity PartRecommendation, renamingIdentifier partRecommendationId, validation predicates (\n), warnings (\n), versionHashModifier (null), attributeType 100 , attributeValueClassName NSNumber, defaultValue 0";
    partType = "(<NSRelationshipDescription: 0x6d2e720>), name partType, isOptional 1, isTransient 0, entity PartRecommendation, renamingIdentifier partType, validation predicates (\n), warnings (\n), versionHashModifier (null), destination entity PartType, inverseRelationship partRecommendations, minCount 1, maxCount 1";
}, subentities {
}, userInfo {
}, versionHashModifier (null)}

I add a lot of data to Core Data before getting this error, but I save twice (once in the middle and then again at the end). Everything is fine after the first save, this is the second salvation that causes the problem, so I will lay out the code that I use after the first, but before the second.

Landscape *landscape = [Landscape object];

Type *type = [Type object];
type.name = @"tree";

MeasurementType *caliperType = [MeasurementType object];
MeasurementType *heightType = [MeasurementType object];

InventoryTree *inventoryTree = [InventoryTree object];
inventoryTree.landscape = landscape;
inventoryTree.type = type;

Assessment *assessmentTree = [Assessment object];
assessmentTree.inventoryItem = inventoryTree;
assessmentTree.type = type;
[[inventoryTree mutableSetValueForKeyPath:@"assessments"] addObject:assessmentTree];

Measurement *caliper = [Measurement object];
Measurement *height = [Measurement object];
caliper.type = caliperType;
height.type = heightType;
[[assessmentTree mutableSetValueForKey:@"measurements"] addObjectsFromArray:[NSArray arrayWithObjects:caliper, height, nil]];

for (PartType *pType in [PartType allObjects]) {
    pType.type = type;
        Part *treePart = [Part object];
        treePart.partType = pType;
        [[assessmentTree mutableSetValueForKey:@"parts"] addObject:treePart];
        for (PartCondition *cond in pType.partConditions) {
            cond.partType = pType;
        }
        for (PartRecommendation *rec in pType.partRecommendations) {
            rec.partType = pType;
        }
}

Convenient methods that I call in subclasses of NSManagedObject can be found here .

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Answer 1

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Answer 2

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NSManagedObject *newObj = [[NSManagedObject alloc] initWithEntity:[obj entity] insertIntoManagedObjectContext:moc]

NSManagedObject *newObj = [[NSManagedObject alloc] initWithEntity:[NSEntityDescription entityForName:obj.entity.name inManagedObjectContext:moc] insertIntoManagedObjectContext:moc]

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Answer 3

:

• CoreData. .
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• Cocoa: 134020.