ERROR: Request for member 'rootview controller' in something not a structure or union?
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21-03-2021 - |
题
self.window.rootViewController = self.tabBarController;
Request for member 'rootview controller' in something not a structure or union
what does this error mean?????
解决方案
You explicitly mention iOS SDK 3.0 in your tags. I'm not sure if that's a mistake since the current SDK is 5.0 and nobody should be developing using iOS SDK 3 any more, but assuming it's not a mistake, the rootViewController property of window wasn't added until iOS SDK 4, so maybe that's why it doesn't work?
其他提示
It's trying to set the property rootViewController
on the object self.window
, but it can't. Does self.window
exist? What type is it? My guess is that you've copied and pasted code that's meant to go in the application delegate somewhere else.
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