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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T00:52:11+00:00 2026-05-16T00:52:11+00:00

Just upgraded to iPhone sdk4 and getting a lot of errors in my iPhone

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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

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  1. Editorial Team
    Editorial Team
    2026-05-16T00:52:11+00:00Added an answer on May 16, 2026 at 12:52 am

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

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