ld: symbol(s) not found for architecture x86_64 Xcode 10.3

Question

I am trying to run a project with objective C and with a private SDK and I get the error

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_DetectionSDK", referenced from:
      objc-class-ref in ViewController.o
      objc-class-ref in AppDelegate.o
      objc-class-ref in SecondViewController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Is weird (for me) because in the real iphone runs (and in xcode 11), but in the simulator does not

looks like you are missing including required framework into your project. `_OBJC_CLASS_$_DetectionSDK` is missing now sure which one, may be the Vision framework. — Buntylm, Nov 11 '19 at 01:55
how would be "required"?? I added it in General-> Linked frameworks, or is there other way? thanks — smithdev, Nov 11 '19 at 01:58
Just clean and build now if you added. FYI: follow this answer https://stackoverflow.com/questions/18408531/xcode-build-failure-undefined-symbols-for-architecture-x86-64 — Buntylm, Nov 11 '19 at 02:00
It's perfectly fine! Because there are lots of framework which are just build for x64 bit architecture and you are build on Simulator that is 32-bit architecture. — Sohil R. Memon, Nov 11 '19 at 04:21

score 0 · Answer 1 · answered Nov 11 '19 at 16:31

0

Looks like your private SDK doesn't contains simulator slices. To check this, run command lipo -i path\to\your_private_sdk\your_private_sdk. Output should contains something like i386 x86_64 armv7 arm64

% lipo -i your_private_sdk 
Architectures in the fat file: your_private_sdk are: i386 x86_64 armv7 arm64

If it contains only armv7 arm64 architectures, you need to create universal framework from your private SDK.

More details you can find here: How to create universal (fat) library

answered Nov 11 '19 at 16:31

Vitalii Gozhenko

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actually i get only armv7 arm64 , but i created an universal framework and still does not work – smithdev Nov 12 '19 at 02:00
if you have only armv7 arm64, this mean that your private SDK built only for iPhone/iPad, not simulator. Seems you are have some problem in making "fat" library – Vitalii Gozhenko Nov 12 '19 at 14:11
@smithdev is your private sdk using Swift or ObjC only? – Vitalii Gozhenko Nov 14 '19 at 08:38
only Objective - C – smithdev Nov 15 '19 at 03:40
I have the same problem with MBWaySDK for payments. It this doesn't work the app is useless – Sergio Nov 19 '19 at 12:30

score -1 · Answer 2 · answered Nov 11 '19 at 06:44

-1

You can try - 1:) delete the app from simulator , clean and build again. 2:) try to reinstall that private sdk & then .clean and build.

answered Nov 11 '19 at 06:44

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ld: symbol(s) not found for architecture x86_64 Xcode 10.3

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