XCode: Undefined symbols for architecture arm64 error

Question

In my XCode 5 project I use RestKit for REST communication. Everything works fine with the simulators, but generating the ipa file, I get the following error:

Answer 1

I ran into the same/similar issue implementing AVPictureInPictureController and the issue was that I wasn't linking the AVKit framework in my project.

The error message was:

Undefined symbols for architecture armv7:

"_OBJC_CLASS_$_AVPictureInPictureController", 
referenced from:
   objc-class-ref in yourTarget.a(yourObject.o)
ld: symbol(s) not found for architecture armv7

clang: error: linker command failed with exit code 1 (use -v to see invocation) The Solution:

Go to your Project Select your Target Then, go to Build Phases Open Link Binary With Libraries Finally, just add + the AVKit framework / any other framework. Hopefully this helps someone else running into a similar issue I had.

Answer 2

In my case i forgot to add sqlite library in my project. After adding library from Linked framework and library the build was successful.

Answer 3

This worked for me:

ios sdk 9.3

into your build setting of app.xcodeproj valid architecture: armv7 armv7s Build Active architecture : No

Clean and build , worked for me.

Answer 4

1. Select Restkit project
2. Set the Build Active Architecture Only to No

Answer 5

Just change in RestKit project -> Build Settings -> Architectures to Standard Architecture (armv7, armv7s, arm64). After that everything should work.

Answer 6

It just means you are building your project also for 64bit (iPhone 5s) and nothing to worry about, see this link for some more explanations: Xcode 5 and iOS 7: Architecture and Valid architectures