XCode Objective-C Apple Mach-O Linker Error

Question

recently started to make apps with XCode. I got this error after I installed cocoapods and used pod init and install... haven't even started to write codes and it failed... Any idea what might cause it? I tried all the methods online but didn't work

The following pictures are the screenshots of errors:

new screen shot

'Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_SFSafariViewController", referenced from: objc-class-ref in TwitterKit(TWTRWebAuthenticationViewController.o) objc-class-ref in TwitterKit(TWTRLoginUtils.o) ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)' — J.Titor.0, Jan 26 '18 at 06:46
@ChanWarde I pod install and update TwitterKit. Do I need to add more? — J.Titor.0, Jan 26 '18 at 06:46
It takes me forever just to import a library/package... why is it so difficult x_x and tons of tons of errors... — J.Titor.0, Jan 26 '18 at 06:49
Ok, @J.Titor.0 send me a copy of your project will resolve all issues and send it back to you. Plus write the solution to every error you got. — Chanchal Warde, Jan 26 '18 at 06:55

score 1 · Accepted Answer · answered Jan 26 '18 at 07:11

1

the SafariServices framework is only available on iOS9 and above. and Please ensure that you have added SafariServices Framework and to run on older versions of iOS ? Try setting it as optional otherwise required.

answered Jan 26 '18 at 07:11

MAhipal Singh

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Hi, thanks for the response. I tried adding safariservices.framework but still have the same error. I noticed that my pods framework is showing as red color. Could it be something wrong in my pod framwork? – J.Titor.0 Jan 26 '18 at 16:56
Can you pls attach that screen shot? – MAhipal Singh Jan 26 '18 at 17:29
What's your deployment Target? – MAhipal Singh Jan 26 '18 at 17:31
Minmum Deployment target ( iOS version) in xcode? And can you clear the derived data & reinstall the pods. – MAhipal Singh Jan 26 '18 at 21:40
8.0... yeah I tried several times reinstalling the pods... it might be my xcode out of date... trying to upgrade it now – J.Titor.0 Jan 27 '18 at 00:51
Set Deployment Target to 9 or 9.3 – MAhipal Singh Jan 27 '18 at 05:46
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I fixed it by updating my xcode ; - ;... thanks for the help! – J.Titor.0 Jan 27 '18 at 05:50

XCode Objective-C Apple Mach-O Linker Error

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