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Apple Mach-O Linker error on upgrade to Xcode 4.4

By Logie on Fri, 07/27/2012 - 01:04

Hello,

I have been using Vuforia on a MacBook Pro with Lion for a couple of months without any problem.

Yesteday, I upgraded Xcode from  the app store to Xcode 4.4 and when I wanted to build and Run my project on my new Ipad I got the following error:

Apple Mach-O Linker Error

ld: Unable to insert branch island. No insertion point available. for architecture armv6

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

I have been using Unity (3.5.3f3) with Vuforia iOS 1.5.9 with XCode 4.3 (before the upgrade).

One day before, and other projects I have done previously have not presented any problems at all.

__________

Error Details:

Apple Mach-O Linker Error

 

Ld /Users/set/Library/Developer/Xcode/DerivedData/Unity-iPhone-cjxyesszntuwvlfamioartwpiqsb/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv6/Corregidor normal armv6

    cd /Users/set/Documents/LE/Lab/AR/MausoleoCorregidorQro/corregidor_ios

    setenv IPHONEOS_DEPLOYMENT_TARGET 4.0

    setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"

    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch armv6 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk -L/Users/set/Library/Developer/Xcode/DerivedData/Unity-iPhone-cjxyesszntuwvlfamioartwpiqsb/Build/Products -L/Users/set/Documents/LE/Lab/AR/MausoleoCorregidorQro/corregidor_ios -L/Users/set/Documents/LE/Lab/AR/MausoleoCorregidorQro/corregidor_ios/Libraries -F/Users/set/Library/Developer/Xcode/DerivedData/Unity-iPhone-cjxyesszntuwvlfamioartwpiqsb/Build/Products -filelist /Users/set/Library/Developer/Xcode/DerivedData/Unity-iPhone-cjxyesszntuwvlfamioartwpiqsb/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv6/Corregidor.LinkFileList -dead_strip -all_load -weak_framework CoreMotion -weak-lSystem -fobjc-link-runtime -miphoneos-version-min=4.0 -framework Security -framework Foundation -framework UIKit -framework OpenGLES -framework QuartzCore -framework OpenAL -liconv.2 -lQCAR -lQCARUnityPlayer -liPhone-lib -framework AudioToolbox -framework CFNetwork -framework MediaPlayer -framework CoreLocation -framework SystemConfiguration -weak_framework iAd -framework CoreMedia -framework CoreVideo -weak_framework AVFoundation -framework CoreGraphics -weak_framework CoreMotion -weak_framework GameKit -o /Users/set/Library/Developer/Xcode/DerivedData/Unity-iPhone-cjxyesszntuwvlfamioartwpiqsb/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv6/Corregidor

 

ld: Unable to insert branch island. No insertion point available. for architecture armv6

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

 

 

______

 

I realized that the problem is avoided if I change the target platform from armv6 + armv7 (...) to just armv7. In that case the compilation is successful and the application is loaded correctly into my iPad.

I am worry that this Xcode change will not allow me to target armv6 ios platforms (which I suppose will not allow people using apple devices with armv6 to run my app)

What can I do to get rid of this error?

I am open to return to a previous XCode version or whichever Vuforia support best or to stay on Xcode 4.4 but to target armv6 platforms.

On the other hand I have noticed that with this Xcode update sometimes I get error regarding about PNG files, but I just need to click Build and Run again to get rid of them.

Thanks!

Hi Logie

Not sure why this would be - likewise Lion & Xcode 4.3 have been fine this end but not yet tried 4.4.

I checked the release notes and nothing jumps out as obvious

https://developer.apple.com/library/ios/#releasenotes/DeveloperTools/RN-Xcode/_index.html

Hi NalinS,

 

Thanks! yes, it happens for even the vuforia samples.

I have read a bit and it is suppossed in the latest Xcode versions Apple drop the support for armv6 devices, but not sure if that info is correct.

DenninDalke

Wed, 08/08/2012 - 19:43

Permalink

Hey Guys, sadly I'm with a similar error here, I have tried to set armv7 both in Unity and XCode (I'm using XCode 4.4) and I still getting those errors:

 

Undefined symbols for architecture armv7:

  "_SecItemAdd", referenced from:

DavidBeard

Wed, 08/08/2012 - 20:05

Permalink

Do the names of your project path directories have any spaces in them? If so, try removing the spaces and rebuilding. Otherwise try deleting the XCode project directory and generating a new one from Unity. That linking error typically arises from a conflict between Unity and Xcode.

DenninDalke

Wed, 08/08/2012 - 20:27

Permalink

Thanx for the reply David, I think that my problem was solved... What I had to do was add the Security.framework in the XCode, as MoSR told here: https://ar.qualcomm.at/content/sdk-1-5-8-ios5#comment-2007386

whydoidoit

Thu, 04/04/2013 - 12:06

Permalink

I still have the Unable to insert branch island error on Xcode 4.6 - Unity 4.1.2 (and have had it continually since XCode 4.4 and Unity 3.5).  This only happens on projects that include Vuforia and only if I enable script debugging in Unity.