coredata .xcdatamodel创建错误.mom，导致无法为新属性设置值，有没有解决方法？今天

我新的实体部分attribures，然后得到这样的错误：coredata .xcdatamodel创建错误.mom，导致无法为新属性设置值，有没有解决方法？今天

LOLHelper[3393:101073] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MatchList_EN setSummonerName:]: unrecognized selector sent to instance 0x60800048f370'

后来我发现我无法找到.sqlist/.mom文件新列/项目，我不知道。我试着重新创建NSManagedObject的子类，卸载并安装应用程序，创建新版本.xcdatamodel，但都不工作。

帕蒂的代码是在这里：

NSManagedObjectContext * contextMatchList_EN = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType]; 
     NSPersistentContainer * psc =[[NSPersistentContainer alloc] initWithName:@"LOLHelper"]; 
     [psc loadPersistentStoresWithCompletionHandler:^(NSPersistentStoreDescription * storeDescription, NSError * error) { 
      if (error != nil) { 
       NSLog(@"Unresolved error %@, %@", error, error.userInfo); 
       abort(); 
      } 
     }]; 

     NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"LOLHelper" withExtension:@"momd"]; 
     NSLog(@"%@", modelURL); 

     [contextMatchList_EN setPersistentStoreCoordinator:psc.persistentStoreCoordinator]; 
     parentContext = contextMatchList_EN; 
     [parentContext performBlockAndWait:^{ 

//   MatchList_EN * MatchList_ENEntity = [NSEntityDescription insertNewObjectForEntityForName:@"MatchList_EN" inManagedObjectContext:parentContext]; 

      MatchList_EN * MatchList_ENEntity = [[MatchList_EN alloc] initWithEntity:[NSEntityDescription entityForName:@"MatchList_EN" inManagedObjectContext:parentContext] insertIntoManagedObjectContext:parentContext]; 

      ///存储所有的属性名称 
      NSMutableArray *allNames = [[NSMutableArray alloc] init]; 
      ///存储属性的个数 
      unsigned int propertyCount = 0; 

      ///通过运行时获取当前类的属性 
      objc_property_t *propertys = class_copyPropertyList([MatchList_ENEntity class], &propertyCount); 

      NSLog(@"class is %@", NSStringFromClass(MatchList_ENEntity.class)); 
      //把属性放到数组中 
      for (int i = 0; i < propertyCount; i ++) { 
       ///取出第一个属性 
       objc_property_t property = propertys[i]; 

       const char * propertyName = property_getName(property); 

       [allNames addObject:[NSString stringWithUTF8String:propertyName]]; 
       NSLog(@"propert is %@", [NSString stringWithUTF8String:propertyName]); 
       } 

      ///释放 
      free(propertys); 

      if (matchListM != nil) { 
       [matchListM setValue:[[self getSummonerInfo_EN] objectForKey:@"accountId"] forKey:@"accountId"]; 
       [matchListM setValue:[[self getSummonerInfo_EN] objectForKey:@"name"] forKey:@"summonerName"]; 
       for (key in matchListM.allKeys) { 
        value = [NSString stringWithFormat:@"%@",[matchListM objectForKey:key]]; 
        if ([key isEqualToString:@"summonerName"]) { 
         MatchList_ENEntity.summonerName = value; 
        } 
        [MatchList_ENEntity setValue:value forKey:key]; 
       } 
//    [gameIdArr addObject:[matchList objectForKey:@"gameId"]]; 
      }

我还检查类型ManagedObject和它的属性，但它是正确!!!!

2017-07-16 00:48:14.173901+0800 LOLHelper[3393:101073] class is MatchList_EN 
2017-07-16 00:48:14.174073+0800 LOLHelper[3393:101073] propert is accountId 
2017-07-16 00:48:14.174169+0800 LOLHelper[3393:101073] propert is assistMost 
2017-07-16 00:48:14.174302+0800 LOLHelper[3393:101073] propert is assists 
2017-07-16 00:48:14.174476+0800 LOLHelper[3393:101073] propert is champion 
2017-07-16 00:48:14.174591+0800 LOLHelper[3393:101073] propert is damageMost 
2017-07-16 00:48:14.174862+0800 LOLHelper[3393:101073] propert is deaths 
2017-07-16 00:48:14.175039+0800 LOLHelper[3393:101073] propert is doubleKill 
2017-07-16 00:48:14.175233+0800 LOLHelper[3393:101073] propert is endIndex 
2017-07-16 00:48:14.175407+0800 LOLHelper[3393:101073] propert is gameCreation 
2017-07-16 00:48:14.175514+0800 LOLHelper[3393:101073] propert is gameId 
2017-07-16 00:48:14.175640+0800 LOLHelper[3393:101073] propert is gameMode 
2017-07-16 00:48:14.175772+0800 LOLHelper[3393:101073] propert is gameType 
2017-07-16 00:48:14.175931+0800 LOLHelper[3393:101073] propert is killMost 
2017-07-16 00:48:14.176189+0800 LOLHelper[3393:101073] propert is kills 
2017-07-16 00:48:14.176455+0800 LOLHelper[3393:101073] propert is lane 
2017-07-16 00:48:14.176632+0800 LOLHelper[3393:101073] propert is minionMost 
2017-07-16 00:48:14.176915+0800 LOLHelper[3393:101073] propert is moneyMost 
2017-07-16 00:48:14.177136+0800 LOLHelper[3393:101073] propert is mvp 
2017-07-16 00:48:14.177367+0800 LOLHelper[3393:101073] propert is pentaKill 
2017-07-16 00:48:14.177613+0800 LOLHelper[3393:101073] propert is platformId 
2017-07-16 00:48:14.177784+0800 LOLHelper[3393:101073] propert is quadraKill 
2017-07-16 00:48:14.177975+0800 LOLHelper[3393:101073] propert is queue 
2017-07-16 00:48:14.178073+0800 LOLHelper[3393:101073] propert is role 
2017-07-16 00:48:14.178224+0800 LOLHelper[3393:101073] propert is season 
2017-07-16 00:48:14.178418+0800 LOLHelper[3393:101073] propert is startIndex 
2017-07-16 00:48:14.178576+0800 LOLHelper[3393:101073] propert is summonerName 
2017-07-16 00:48:14.178746+0800 LOLHelper[3393:101073] propert is takenMost 
2017-07-16 00:48:14.178865+0800 LOLHelper[3393:101073] propert is timestamp 
2017-07-16 00:48:14.179049+0800 LOLHelper[3393:101073] propert is totalGames 
2017-07-16 00:48:14.179188+0800 LOLHelper[3393:101073] propert is tripleKill 
2017-07-16 00:48:14.179313+0800 LOLHelper[3393:101073] propert is turretMost 
2017-07-16 00:48:14.179507+0800 LOLHelper[3393:101073] propert is win 
2017-07-16 00:48:14.179663+0800 LOLHelper[3393:101073] propert is listToMatch

来源

2017-07-15 Easer Liu

找到了答案：Xcode中8后原因，有大约coredata一个新的功能时，Xcode将程序自动创建NSManagedObject在DerivedShources文件夹（DerivedData /项目）。因此可以删除DerivedData中的项目，或更改Xcode 8下的名为tools version的.xcdatamodel选项，然后修复它。

来源

2017-07-16 08:56:14

coredata .xcdatamodel创建错误.mom，导致无法为新属性设置值，有没有解决方法？今天

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