NSInternalInconsistencyException變異方法發送到不可變對象在Xcode 6.1

Question

在我的辦公室，我們有兩個iMac的是，在第二次6.1

第一的Xcode 6.0.1我們在同一個應用程序工作，並在6.0.1一切做工精細在6.1這個應用程序是崩潰。

我真的很希望我能正確地解釋這個問題。

這是Xcode輸出：

2014-11-03 10:48:57.358 appName[3282:505629] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable object' 
*** First throw call stack: 

List item 
... 

我的問題，從這裏開始，當我點擊發送按鈕：

-(void)sendButtonClicked 
{ 
NSMutableDictionary *pack = [self createMessagePack]; 
[Conversation addMessage:pack ToConversationWithUser:theUser]; 
[inputTextView setText:@""]; 
} 

創建包：

-(NSMutableDictionary *)createMessagePack 
{ 
NSMutableDictionary *msg = [[NSMutableDictionary alloc]init]; 
[msg setObject:CurrentUser.UserName forKey:@"sender"]; 
[msg setObject:theUser.Number forKey:@"reciever"]; 
[msg setObject:[NSDate dateWithTimeIntervalSinceNow:0] forKey:@"createdAt"]; 
[msg setObject:inputTextView.text forKey:@"text"]; 

return msg; 
} 

此塔的應用程序崩潰在這一行「[addObject addObject：message];」

+(void)addMessage : (NSMutableDictionary *)message ToConversationWithUser : (appUsers *)user 
{ 
NSMutableArray *conversation = [Conversation getConversationWithUser:user]; 
if ([conversation count] == 0) 
{ 
    [user savePerson]; 
} 
[conversation addObject:message]; 

[Conversation saveConversation:conversation WithUser:user]; 
} 

對話getConversationWithUser：用戶跳到這裏

+(NSMutableArray *)getConversationWithUser : (appUsers *)user 
{ 
NSMutableDictionary *allConversations = [Conversation getAllConversations]; 

NSMutableArray *theConversation = [allConversations objectForKey:user.appNumber]; 

if (!theConversation) // the conversation not exist yet.. 
{ 
    theConversation = [[NSMutableArray alloc]init]; 
} 

return theConversation; 
} 

[對話getAllConversations];跳轉到這裏

+(NSMutableDictionary *)getAllConversations 
{ 
NSMutableDictionary *allConversations = [[NSUserDefaults standardUserDefaults] objectForKey:@"conversations"]; 
if (!allConversations) 
{ 
    allConversations = [[NSMutableDictionary alloc]init]; 
    [[NSUserDefaults standardUserDefaults] setObject:allConversations forKey:@"conversations"]; 
} 
return allConversations; 
} 

我明白，我有「NSUserDefaults的standardUserDefaults」返回不可變的一個問題，但我在這裏什麼都試過了還是沒有解決它。

Answer 1

變化：

NSMutableDictionary *allConversations = [Conversation getAllConversations]; 

這樣：

NSMutableDictionary *allConversations = [[NSMutableDictionary alloc]initWithDictionary:[Conversation getAllConversations]];