Undefined symbols for architecture arm64

Question

I am getting a Apple Mach-O Linker Error everytime I import a file from CocoaPods   Undefined symbols for architecture arm64      OBJC CLASS   FBSession   referenced from  someFile ld  symbol s  not found for architecture arm64   I get about 12 of these  for the various Pods I use   I am trying to build for the iPhone 5S using XCode 5   I ve been trying various solutions here on SO  but haven t got any of them to work yet   How do I fix this Apple Mach-O Linker Error     Just found another warning that might be interesting  I hope this leads me to the solution   Ignoring file   Library Developer Xcode DerivedData SomeApp Build Products Debug-iphoneos libPods a     file was built for archive which is not the architecture being linked  arm64    Library Developer Xcode DerivedData someApp Build Products Debug-iphoneos libPods a

User · Answer

I have facing the same problem after installing the AWS framework to overcome this issue,I have update the POD config file from your project which get created after installing AWS POD. Check config file as below

OTHER_LDFLAGS = $(inherited) -ObjC -l"Pods-AWSAutoScaling" -l"
Pods-   AWSCloudWatch" -l"Pods-AWSCognito" -l"Pods-AWSCore" -l
"Pods-AWSDynamoDB" -l"Pods-AWSEC2" -l"Pods-AWSElasticLoadBalancing" 
-l"Pods-AWSKinesis" -l"Pods-AWSLambda" -l"Pods-AWSMachineLearning" 
-l"Pods-AWSS3" -l"Pods-AWSSES" -l"Pods-AWSSNS" -l"
Pods-AWSSQS"-l "Pods-AWSSimpleDB" -l"Pods-Bolts" -l"Pods-FMDB" 
-l"Pods-GZIP" -l"Pods-Mantle" -l"Pods-Reachability" -l"Pods-TMCache" 
-l"Pods-UICKeyChainStore" -l"Pods-XMLDictionary" -l"sqlite3" -l
"z"-framework "Accelerate" -framework "AssetsLibrary" 
-framework "CoreLocation" -framework "Foundation" -framework
"ImageIO" -framework "Security" -framework "SystemConfiguration"
-framework "UIKit" -weak_framework "UIKit"
 OTHER_LIBTOOLFLAGS = $(OTHER_LDFLAGS)

if your config file not working properly then Set your Other Linker flag to $(inherited)

User · Answer

The issue is that the cocoapods have not been built for arm64 architecture yet thus they cannot be linked when you build them   Likely you cannot use those packages until they are updated and use that architecture   You can fix the linker error by going to project -  target  your project name  -  build settings and change architectures to standard architectures  armv7  armv7s   and valid architectures to armv7  armv7s     Note though  this means you won t get the full power of the 64 bit processor   You said you are building for the 5s  so there may be some reason you need this   If you for some reason absolutely need that power  perhaps you are building a game   and desperately need those files  you could submit a pull request and then recompile the project to arm64 by setting those same fields to arm64 in the files you pulled from the open source projects   But  unless you really need these files to be 64 bit compatible  that seems like a bit of overkill for now   EDIT  Some people also reported that setting Build For Active Architectures to YES was also necessary to solve this problem   As of 2014-04-28 the setting should look something like this

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I faced the same issue  My solution I found here  Why linker link static libraries with errors  iOS  Adding   TOOLCHAIN DIR  usr lib swift   PLATFORM NAME  to the library search paths fixed the problem

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I solved it by setting valid archs to armv7 armv7s and setting build active architectures only to YES in release and then doing a new  pod install  from the command line

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I had the same problem after upgrading to Xcode 5 1 and fixed it by setting Architectures to armv7 armv7s

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Given an iPhone 5s and not yet having received a 64 bit version of a third party library  I had to go back to 32 bit mode with the latest Xcode  prior to 5 1 it didn t complain      I fixed this by deleting arm64 from the Valid Architectures list and then setting Build Active Architecture Only to NO   It seems to me this makes more sense than the other way around as shown above   I m posting in case other people couldn t get any of the above solutions to work for them

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I fixed mine by checking the selected implementation files in the target membership on the right side  This is useful especially in dealing with extensions i e  custom keyboards

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Hope can help you  I add framework and the problem has been resolved

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in some case  if you define one more interface in a  h file  but did not implementation all these interface  this error occurred   The linker can t found the implementation in  m file  so you need to implementation it in your  m file for every interface   To resolve this error   1 in  m file  supply the implementation for each interface  2 rebuild

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If your Architectures and Valid Architectures are all right  you may check whether you have added   inherited    which will add linker flags generated in pods  to  Other Linker Flags as below

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This issue occurred for me after installing a pod via Podfile and pod install  After trying a bunch of different fixes I finally just imported the Pod manually  dragging the necessary files into my project  and that solved the problem

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Adding  Security framework  did the trick for me

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As morisunshine answer pointed in right direction  a little tweak in his answer solved my problem for iOS8 2  Thanks to him   I solved this problem by setting that   ARCHS   armv7  VALID ARCHS   armv6 armv7 armv7s arm64  BUILD ACTIVE ARCHITECTURE ONLY  NO

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Setting -ObjC to Other Linker Flags in Build Settings of the target solved the problem

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Set Architectures to armv7  armv7s  Build Active Architecture Only to NO  for every target in the project  including every one in Pods

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My problem was that I already had some Facebook SDKs in my project  FBSDKLoginKit and FBSDKCoreKit    I only needed one more SDK  FBSDKShareKit  and imported it  which thus gave  Undefined symbols architecture for arm64    As the FBSDKShareKit is dependent on an updated version of FBSDKCoreKit  by updating the other frameworks  everything worked again

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In my case  I had to look for   C   Standard Library and make sure that the libc   was the one selected

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I solved this problem by setting that   ARCHS   armv7 armv7s  VALID ARCHS   armv6 armv7 armv7s arm64

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The following worked for me to get GPUImage compiling without errors on Xcode 5 1 for both the 64-bit simulator and retina iPad Mini  without needing to remove arm64 from the Valid Architectures list  which defeats the purpose of owning a 64-bit device for testing 64-bit performance    Download the  zip folder from the GitHub page  https   github com BradLarson GPUImage  Unzip  and navigate to the  framework  folder  From here  add and copy the  Source  folder into your Xcode project  Ensure  Copy items into destination group s folder  is ticked  and that  Create groups for any added folders  is also ticked  This will copy the generic  iOS and Mac header implementation files into your project    If you don t need the Mac files because you re compiling for iOS you can delete the Mac folder either before you copy the files into your project  or simply delete the group from within Xcode   Once you ve added the Source folder to your project just use the following to begin using GPUImage s classes methods     import  Source GPUImage h     A few things to point out    If you get an error saying  Cocoa  not found  you ve added the Mac folder headers into your iOS project - simply delete the Mac group files from your project and the warning will vanish If you rename the Source folder  not the group in Xcode   use that name instead of  Source GPUImage h  in the  import instruction  So if you rename the folder to GPUImageFiles before you add to your project  use   import  GPUImageFiles GPUImage h Obviously ensure arm64 is selected in the Valid Architectures list to take advantage of the A7 64-bit processor   This isn t a GPUImage framework bundle  such as if you downloaded the framework from http   www raywenderlich com 60968 ios-7-blur-effects-gpuimage  so it may not the correct way to use GPUImage that Brad Larson intended  but it works for my current SpriteKit project   There s no need to link to frameworks libraries etc - just import the header and implementation source folder as described above   Hope the above helps - it seems there were no clear instructions anywhere despite the question being asked multiple times  but fear not  GPUImage definitely works for arm64 architecture

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I had this issue with my  umbrella framework  which when I was building the second level framework    I solved this by changing my first level framwork s Build Scheme for  Generic iOS Device   I think this will change  CodeSignature  which I saw the difference when I pushing my whole  umbrella framework  to GitHub

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This solution is the only thing that worked for me  go to CordovaLib settings and add arm64 to Valid Architectures

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This error consumed my whole day so thought of writing what really worked for me  delete  xworkspace delete podfile lock delete the Pods folder directory   quot DO NOT DELETE PODFILE quot  After all this  CLEAN OPTION   SHIFT   CMD   K  -- gt  BUILD CMD   B  -- gt  RUN CMD   R  I hope this really works for you

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Had been stuck on this issue the whole day   I had multiple Schemes  it was compiling fine for Demo  Internal  Release - however Debug scheme just would not compile and was complaining about the libPods a missing    The solution was to go to the Project -  Target -  Build Settings and change  Build Active Architecture Only  to YES  Clean and build  Finally hours of head itching solved

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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

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Here are some explanations why build active architecture is set to NO  Xcode now detects which devices you have connected and will set the active architecture accordingly  So if you plug a 2nd generation iPod Touch into your computer  Xcode should set the active architecture to armv6  Building your target with the above Debug configuration will now only build the armv6 binary to save time  unless you have a huge project you may not notice the difference but I guess the seconds add up over time   When you create a Distribution configuration for publishing to the App Store  you should make sure this option is not set  so that Xcode will instead build the fat universal binary http   useyourloaf com blog 2010 04 21 xcode-build-active-architecture-only html

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This might be related to libz dylib or libz tbd  just have to add it to your targets for the linking binaries  and try to compile again

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None of the solutions fix this error in my case Xcode 9   with TesseractOCRiOS  After hours of trial and error  I came up with a good solution  I just delete  pod  TesseractOCRiOS      gt  4 0 0  in the Podfile  run pod install  And then  add pod  TesseractOCRiOS      gt  4 0 0  back to Podfile and run pod install again    Bang  It works

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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

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For me  I use opencv 2 4 9 in xcode 7 2 for iOS and the errors above occurred  and I solve the errors by using the opencv through pod install rather than offline opencv framework   You can have a try by adding the opencv pod text below and delete the offline opencv framework if you have used   pod  OpenCV    2 4 9

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If the architecture and linker settings look good  check your h files   My issue was the same error  but I had restructured the h files and I removed an extern statement   Other m files were using that variable  causing the linker error

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If you faced this issue on your Flutter project while building in Release mode  or Archive  check out my this answer  https   stackoverflow com a 61446892 5502121  Long story short    set your build system to New Build System in File   Project Settings     remove ios and build ios folders  run flutter create   to init new ios module run pod install  run flutter pub get  check your Xcode build config  it should be Release mode and General iOS Device    and you re good to go

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You need to just remove arm64 from Valid Architecture and set NO to Active Architecture Only   Now just Clean  Build and Run  You will not see this error again       KP

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I know this is an old branch  However  the same problem started happening to me after migrating to the latest CocoaPods version  1 0 0  and trying to reinstall all pods  I encountered the  Missing symbols for armv64  linker error  Oddly enough  I solved it by performing the following steps    Remove all pods  pod init   pod install  Rewrite the podfile in a reversed order  instead of  pod  Mixpanel   pod  Intercom   I used  pod  Intercom   pod  Mixpanel    Pod install   Reversing the order of the dependencies in the podfile and rebuilding the pods has solved the problem

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Replacing -ObjC with   inherited  in Other Linker Flags fixed my problem

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The OPN  Debug  target overrides the OTHER LDFLAGS build setting   This was the main issue  After adding   inherited  in new line in other linker flags solved my issue

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This linker error message suggests that the source file defining it is not marked as being part of your app target  Find that source file  and use the File property inspector on the right to check the target membership entry for your app target   Solution  Select the file -  openFile Inspector -  see Target Membership -  check if unchecked target your running target

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I also encountered the same problem   the above methods will not work   I accidentally deleted the files in the following directory on it    Folder emplacement      Library Developer Xcode DerivedData

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Go to target Build Settings  set BUILD ACTIVE ARCHITECTURE ONLY   NO for both Debug and Release Build and run

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Put the library in the same folder of project  that works for me

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If you use a  framework  a writed by c    where you invoke the c   code  whice file need change to  mm file   I losed half a day in that

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In my case using dlib in IOS  I need to delete  inherited  from build settings preprocessor macros

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Solved after deleting the content of the DerivedData-- Build-- Products-- Debug-iphoneos

[ios] Undefined symbols for architecture arm64

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