應用程序獲取iPod上的空白屏幕

當我在iPod 4G上運行我的應用程序時，它僅顯示空白屏幕。這裏是日誌：應用程序獲取iPod上的空白屏幕

run 
Running… 
[Switching to thread 11779] 
[Switching to thread 11779] 
Re-enabling shared library breakpoint 1 
continue 
objc[1014]: Class OutgoingMessage is implemented in both /System/Library/PrivateFrameworks/Message.framework/Message and /var/mobile/Applications/2930A145-7E61-4083-B893-FDBAE148FEF7/ABC.app/ABC. One of the two will be used. Which one is undefined. 
objc[1014]: Class Message is implemented in both /System/Library/PrivateFrameworks/MIME.framework/MIME and /var/mobile/Applications/2930A145-7E61-4083-B893-FDBAE148FEF7/ABC.app/ABC. One of the two will be used. Which one is undefined. 
Watchdog has expired. Remote device was disconnected? Debugging session terminated. 
Watchdog has expired. Remote device was disconnected? Debugging session terminated. 

The Debugger has exited due to signal 15 (SIGTERM).The Debugger has exited due to signal 15 (SIGTERM).

任何人都可以幫我解決這個問題嗎？這是在iPhone 4，iPhone 3gs和iPad1上工作。

來源

2011-12-15 Vivek2012

我這一次發生在檢查其功能（如canSendMail）當我在調試之間中途斷開設備時。我得到這個錯誤信息，直到我重新啓動設備。你已經嘗試過了嗎？ – 2011-12-15 06:42:23

是我嘗試過。但仍然味精和黑屏出現..！沮喪在這個錯誤。 – Vivek2012 2011-12-15 06:52:22

嘗試運行示例代碼，看看這是否是您的代碼或設備的問題。如果問題是你的代碼，嘗試逐步從didFinishLaunchingWithOptions

兼評出來的東西看出來的類（比如MFMailComposeViewController），你必須之前使用它們

來源

2011-12-15 07:05:01

應用程序獲取iPod上的空白屏幕

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