TabbarController crashes in 3.0

Question

i am using TabBarController , it is working fine in my ipod.

but my application is crashing it 3.0 . any help please?

self.window.rootViewController = self.tabBarController; //crashing here

and log shows

-[UIWindow setRootViewController:]: unrecognized selector sent to instance 0x127c80
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -    
[UIWindow setRootViewController:]: unrecognized selector sent to instance 0x127c80'

According to the exception, the value you want to set as rootview controller to window is not initialized or NULL. — alloc_iNit, Aug 06 '11 at 06:05
ya but it is working well in my ipod , crashing only in 3.0. — PJR, Aug 06 '11 at 06:08
Implement NSZombieEnabled = YES and it will show you the exact crash reason. — alloc_iNit, Aug 06 '11 at 06:18
same thing crashing in self.window.rootViewController = self.tabBarController; — PJR, Aug 06 '11 at 06:24

score 2 · Accepted Answer · edited May 23 '17 at 12:26

2

This may show you the right direction. Let me know if the problem still continues.

Due to executing on different versions of iOS, that method may have deprecated.

edited May 23 '17 at 12:26

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answered Aug 06 '11 at 06:26

alloc_iNit

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score 2 · Answer 2 · answered Aug 06 '11 at 06:31

The crash is because you're calling a method that doesn't exist, not because your variables are not initialized.

-setRootViewController doesn't exist prior to iOS 4.0. Use

[self.window addSubview:self.tabBarController.view];

instead.

Or, update your target platfor to 4.0.2 or later. It's probably less than 5% of users that aren't using iOS 4 at this point.

TabbarController crashes in 3.0

2 Answers2