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我有一个NSMutableArray;

NSMutableArray
--NSMutableArray
----NSDictionary
----NSDictionary
----NSDictionary
--NSMutableArray
----NSDictionary
----NSDictionary
----NSDictionary

我想将第一个NSDictionary移动到第二个NSMutableArray.这是代码:

id tempObject = [[tableData objectAtIndex:fromSection] objectAtIndex:indexOriginal];
[[tableData objectAtIndex:fromSection] removeObjectAtIndex:indexOriginal];
[[tableData objectAtIndex:toSection] insertObject:tempObject atIndex:indexNew];

它删除了对象,但无法将对象插入新位置.错误是:

[CFDictionary retain]: message sent to deallocated instance 0x4c45110

在头文件中:

NSMutableArray *tableData;
@property (nonatomic, retain) NSMutableArray *tableData;

我如何重新排序/移动nsmutablearray中的对象？