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I am getting app crash in xcode with error

"Assertion failure in -[UIApplication _runWithMainScene:transitionContext:completion:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3512.60.7/UIApplication.m:3401"

How to resolve this error?

KAR
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2 Answers2

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Application windows are expected to have a root view controller at the end of application launch

You are using Old version. you still continue than:

[window addSubview:viewController.view];

You should instead replace it with:

[window setRootViewController:viewController];
Pritesh Raiyani
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Just remove this line from appdelegate.m file in application didFinishLaunchingWithOptions

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen]bounds]];

By removing this line code works fine.

NSNoob
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KAR
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