終止應用程序由於未被捕獲>異常'NSInvalidArgumentException'

-1

這似乎應該是非常簡單 - 但唉，我得到一個崩潰。我只是想爲我設置的UILabel從USERS_NAME場返回的文本：終止應用程序由於未被捕獲>異常'NSInvalidArgumentException'

NSMutableDictionary *viewParams = [NSMutableDictionary new]; 
[viewParams setValue:@"u000" forKey:@"view_name"]; 
[DIOSView viewGet:viewParams success:^(AFHTTPRequestOperation *operation, id responseObject) { 


    self.userData = [responseObject mutableCopy]; 

    self.username.text = [self.userData objectForKey:@"users_name"]; 

    dispatch_async(dispatch_get_main_queue(), ^(void){ 

    }); 


} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    NSLog(@"Failure: %@", [error localizedDescription]); 
}];

控制檯返回數據：

2016-04-05 12:25:36.877 [1331:350069] This is the Other User Data (
     { 
     address = "Vancouver"; 
     userbio = "There is currently no bio available for this user. If you have added your bio, and require assistance, please contact the Team."; 
     "users_name" = Brittany; 
    },

也就是說，這條線路導致崩潰：

self.username.text = [self.userData objectForKey:@"users_name"];

這是錯誤：

2016-04-05 12:25:36.878 [1331:350069] -[__NSCFArray objectForKey:]: unrecognized selector sent to instance 0x15a23c100 2016-04-05 12:25:36.881 [1331:350069] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFArray objectForKey:]: unrecognized selector sent to instance 0x15a23c100' * First throw call stack: (0x181d51900 0x1813bff80 0x181d5861c 0x181d555b8 0x181c5968c 0x1000cce9c 0x1000c72bc 0x1000d3cc4 0x100459bf0 0x100459bb0 0x10045f658 0x181d08bb0 0x181d06a18 0x181c35680 0x183144088 0x186aacd90 0x1000d4c88 0x1817d68b8) libc++abi.dylib: terminating with uncaught exception of type NSException

我會如何解決這個問題？它似乎應該是簡單的...

來源

2016-04-05 Brittany

你可以嘗試userData [@「users_name」]？並且userData是NSDictionary？如果失敗，請嘗試記錄userData [@「users_name」]。 –

它看起來像它認爲userData是一個數組（原因是' - [NSCFArray objectForKey：]'）我會嘗試放置一個斷點，並驗證'userData'實際上是一個字典，而不是一個數組 –

@TejaNandamuri是的，做這種方式失敗了。同樣的崩潰錯誤。 – Brittany

我想userData是一個數組類型。數組沒有鍵值。嘗試：
[[self.userData objectAtIndex:0] objectForKey:@"users_name"];

來源

2016-04-05 19:42:35 Ookey

我得到的錯誤：「沒有可見@interace爲'NSDictionary'聲明選擇器objectAtIndex當我輸入此 – Brittany

我懷疑這是因爲你聲明userData作爲一個NSDictionary up top。更改類型爲NSArray，然後我懷疑將工作。 –

終止應用程序由於未被捕獲>異常'NSInvalidArgumentException'

回答

相關問題