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How to solve the errror “”_CGAffineTransformMakeRotation“, referenced from:”?

When i use the following code i am getting the error message that says

""_CGAffineTransformMakeRotation", referenced from:"

    companyNameLbl.transform=CGAffineTransformMakeRotation(30);

Can anyone please tell me what will be the reason for this error.

If I remember correctly, those transformations require that you link against the CoreGraphics Framework.

See How to "add existing frameworks" in Xcode 4? if you have difficulties adding new frameworks in XCode.

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