how to compile iPhone sdk 3.0 project in iPhone sdk4

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how to compile iPhone sdk 3.0 project in iPhone sdk4

Hello All,

Just upgraded to iPhone sdk4 and getting a lot of errors in my iPhone sdk3.0 projects.

Here are some - "_OBJC_CLASS_$_NSMutableURLRequest", referenced from: "_OBJC_CLASS_$_UITabBar", referenced from: "_OBJC_METACLASS_$_UIViewController", referenced from:

about 66 errors ...

Any idea what is wrong here...

Thanks Saurabh

Go to Project Settings -> Build and set Base SDK to iPhone Device 4.0 and iPhone OS Deployment Target to iPhone OS 3.0

jamapag 2010-08-02 08:38:15

Thanks! one more thing when I modify XIB files and run the app in simulator the userinterface become blank (black color) any idea on this?

Saurabh 2010-08-02 09:24:19

I've never dealt with it. Maybe you press Command+R in IB that just simulate interface?

jamapag 2010-08-02 10:01:24

when i change any other xib its not creating any problem.. but whenever i change the MainWindow.xib file. the view will not appear in the simulator...

Saurabh 2010-08-02 12:50:32