When I build an example project in openFrameworks for iOS, it becomes Apple mach-O Linker Error though I do not do anything to the project.
Whichever sample project I choose, it will be the same result.
How do I fix it?
The followings is whole error message.
Ld /Users/xxxxxx/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Products/Debug-iphonesimulator/emptyExample.app/emptyExample normal i386
cd /Applications/of_v0.8.4_ios_release/examples/ios/emptyExample
export IPHONEOS_DEPLOYMENT_TARGET=3.1
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.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 i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.0.sdk -L/Users/xxxxxx/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Products/Debug-iphonesimulator -F/Users/xxxxxx/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Products/Debug-iphonesimulator -filelist /Users/xxxxxx/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Intermediates/emptyExample.build/Debug-iphonesimulator/emptyExample.build/Objects-normal/i386/emptyExample.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -ObjC ../../../libs/FreeImage/lib/osx/freeimage.a ../../../libs/freetype/lib/ios/freetype.a ../../../libs/FreeImage/lib/ios/freeimage.a ../../../libs/poco/lib/ios/PocoNet.a ../../../libs/poco/lib/ios/PocoNetSSL.a ../../../libs/poco/lib/ios/PocoCrypto.a ../../../libs/poco/lib/ios/PocoXML.a ../../../libs/poco/lib/ios/PocoZip.a ../../../libs/poco/lib/ios/PocoUtil.a ../../../libs/poco/lib/ios/PocoFoundation.a ../../../libs/tess2/lib/ios/tess2.a ../../../libs/glu/lib/ios/glu.a ../../../libs/glu/lib/ios/glu-ios.a ../../../libs/openssl/lib/ios/ssl.a ../../../libs/openssl/lib/ios/crypto.a -stdlib=libstdc++ -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=3.1 -framework CoreVideo /Applications/of_v0.8.4_ios_release/libs/openFrameworksCompiled/lib/ios/libofxiOS_iphonesimulator_Debug.a -framework Foundation -framework UIKit -framework CoreGraphics -framework OpenGLES -framework QuartzCore -framework AudioToolbox -framework OpenAL -framework CoreLocation -framework CoreGraphics -framework AVFoundation -framework CoreMedia -framework MapKit -Xlinker -dependency_info -Xlinker /Users/xxxxxx/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Intermediates/emptyExample.build/Debug-iphonesimulator/emptyExample.build/Objects-normal/i386/emptyExample_dependency_info.dat -o /Users/teruyakusumoto/Library/Developer/Xcode/DerivedData/emptyExample-ghwshtlvcvsjalcvfnqzpyjfmhhc/Build/Products/Debug-iphonesimulator/emptyExample.app/emptyExample
ld: -pie can only be used when targeting iOS 4.2 or later
clang: error: linker command failed with exit code 1 (use -v to see invocation)
As the 2nd to last line in the error message indicates, it looks like you need to set your "Deployment target" to iOS 4.2 or later. It looks you're trying to build for iOS 3.1, but a library is using API's that require 4.2 or newer.
Related
Get the following linking error trying to build against unity3d version 5.3.5f1
Ld /Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Products/Debug-iphoneos/ar.app/ar normal arm64
cd "/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New Unity Project/build/app"
export IPHONEOS_DEPLOYMENT_TARGET=6.0
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.3.sdk -L/Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Products/Debug-iphoneos -L/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New\ Unity\ Project/build/app -L/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New\ Unity\ Project/build/app/Libraries -L/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New\ Unity\ Project/build/app/Libraries/KudanAR/Plugins/iOS -F/Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Products/Debug-iphoneos -filelist /Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/ar.LinkFileList -Xlinker -map -Xlinker /Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/ar-LinkMap-normal-arm64.txt -miphoneos-version-min=6.0 -dead_strip -Xlinker -no_deduplicate -fembed-bitcode-marker -weak_framework CoreMotion -weak-lSystem -stdlib=libc++ -fobjc-arc -fobjc-link-runtime -liPhone-lib -framework CoreText -framework AudioToolbox -weak_framework AVFoundation -framework CFNetwork -framework CoreGraphics -framework CoreLocation -framework CoreMedia -weak_framework CoreMotion -framework CoreVideo -framework Foundation -weak_framework iAd -framework MediaPlayer -framework OpenAL -framework OpenGLES -framework QuartzCore -framework SystemConfiguration -framework UIKit -liconv.2 -lKudanPlugin -Xlinker -dependency_info -Xlinker /Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/arm64/ar_dependency_info.dat -o /Users/georgecook/Library/Developer/Xcode/DerivedData/Unity-iPhone-bfwjzdbspnhgyjblhswtougxoafx/Build/Products/Debug-iphoneos/ar.app/ar
ld: warning: object file (/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New Unity Project/build/app/Libraries/KudanAR/Plugins/iOS/libKudanPlugin.a(KARPlugin.o)) was built for newer iOS version (8.0) than being linked (7.0)
ld: '/Users/georgecook/Documents/tantaWowa/projects/dontRobMyPlanet/git/New Unity Project/build/app/Libraries/KudanAR/Plugins/iOS/libKudanPlugin.a(KARPlugin.o)' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
In your error log, it's saying that Bitcode is not enabled for the framework.
You will need to disable Bitcode on your Xcode project in order for it to build.
Make sure to disable Bitcode on your project and your Targets. (https://wiki.kudan.eu/Building_the_app_-_iOS)
I've been working on an app for some time now and it had been giving me trouble compiling on an iPhone. Recently, it stopped compiling even on the simulator. I've browsed stack overflow and other websites for answers but I can't seem to find anything that resolves the issue. Below is the error I'm getting.
I've restored an earlier version of the entire app to see if that fixed the problem but it didn't seem to make any difference. I'm still getting the same error.
Can anyone help?
Ld /Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Products/Debug-iphonesimulator/lynx.app/lynx normal x86_64
cd /Users/beauharper/Documents/Developer/lynx
export IPHONEOS_DEPLOYMENT_TARGET=9.2
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk -L/Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Products/Debug-iphonesimulator -F/Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Products/Debug-iphonesimulator -F/Users/beauharper/Documents/Developer/lynx/Pods/GoogleMaps/Frameworks -filelist /Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Intermediates/lynx.build/Debug-iphonesimulator/lynx.build/Objects-normal/x86_64/lynx.LinkFileList -Xlinker -rpath -Xlinker #executable_path/Frameworks -mios-simulator-version-min=9.2 -Xlinker -objc_abi_version -Xlinker 2 -ObjC -lBolts -lFBSDKCoreKit -lFBSDKLoginKit -lParse -lParseFacebookUtilsV4 -lParseTwitterUtils -lParseUI -lc++ -licucore -lsqlite3 -lz -framework AVFoundation -framework Accelerate -framework AudioToolbox -framework CFNetwork -framework CoreBluetooth -framework CoreData -framework CoreGraphics -framework CoreLocation -framework CoreText -framework Foundation -framework GLKit -framework GoogleMaps -framework ImageIO -framework OpenGLES -framework QuartzCore -framework Security -framework StoreKit -framework SystemConfiguration -framework UIKit -weak_framework Accounts -weak_framework AudioToolbox -weak_framework CoreGraphics -weak_framework CoreLocation -weak_framework Foundation -weak_framework QuartzCore -weak_framework Security -weak_framework Social -weak_framework UIKit -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator -Xlinker -add_ast_path -Xlinker /Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Intermediates/lynx.build/Debug-iphonesimulator/lynx.build/Objects-normal/x86_64/lynx.swiftmodule -lPods -lPods-lynx -Xlinker -dependency_info -Xlinker /Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Intermediates/lynx.build/Debug-iphonesimulator/lynx.build/Objects-normal/x86_64/lynx_dependency_info.dat -o /Users/beauharper/Library/Developer/Xcode/DerivedData/lynx-gbjyyjvzcpeldyadlzddtokengts/Build/Products/Debug-iphonesimulator/lynx.app/lynx
ld: library not found for -lPods
clang: error: linker command failed with exit code 1 (use -v to see invocation)
After further review and fiddling, and after reviewing a similar question referenced by #damian, it seems that the solution was this:
I separated the app and the test targets in the Podfile by using
target :App do
…
end
target :AppTests do
…
end
This resulted in two new products libPods-App.a and libPods-AppTests.a, respectively and they made the previous product libPods.a obsolete. I had to remove this product from the Link Binary With Libraries Section of the Build Phases configuration of both targets.
Thanks for the input everyone!
Try deleting your Derived Data folder, restarting Xcode and and running the project again. Go to Window -> Projects and navigate to your project. There should be mention of your derived data folder. Press Delete, restart Xcode and try building it again. See if that kicks it back into high gear again.
When I build my project targeting the simulator, it builds fine. However when I target my device running iOS 9, I receive the following error:
Linker command failed with exit code 1
Along with a Directory not found for option warning.
How can I solve this?
Edit : Full Error log
Ld /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator/xxxxx\ xxxx.app/xxxxx\ xxxx normal x86_64
cd "/Users/gbs-mac/Desktop/Swapnil/xxxxx xxxxx"
export IPHONEOS_DEPLOYMENT_TARGET=7.0
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.0.sdk -L/Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator -F/Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator -F/Users/sumitghosh/Documents/facebookSDK -F/Users/gbs-mac/Desktop/Swapnil/xxxxxx\ xxxxx/FacebookSDK -F/Users/gbs-mac/Desktop/Swapnil/xxxxxx\ xxxxx/xxxxxx -xxxxx -F/Users/gbs-mac/Desktop/Swapnil/xxxxxx\ xxxxxx -filelist /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Intermediates/Celebrity\ Face.build/Debug-iphonesimulator/xxxxxx\ xxxx.build/Objects-normal/x86_64/xxxxx\ xxxxx.LinkFileList -Xlinker -rpath -Xlinker #executable_path/Frameworks -mios-simulator-version-min=7.0 -bundle_loader /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator/MyExistingApp.app/MyExistingApp -Xlinker -objc_abi_version -Xlinker 2 -ObjC -fobjc-arc -fobjc-link-runtime -framework StoreKit -framework EventKit -framework EventKitUI -framework CFNetwork -framework CoreTelephony -framework CoreMedia -framework CoreGraphics -framework SystemConfiguration -framework AVFoundation -framework AdSupport -framework AudioToolbox -framework iAd -framework Security -framework AssetsLibrary -framework MobileCoreServices -framework CoreLocation -framework MediaPlayer -framework MessageUI -framework QuartzCore -framework FBSDKShareKit -framework UIKit -framework GoogleMobileAds -framework FBSDKCoreKit -framework FBSDKLoginKit -Xlinker -dependency_info -Xlinker /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Intermediates/xxxxxx\ xxxx.build/Debug-iphonesimulator/xxxxxxx\ xxxx.build/Objects-normal/x86_64/xxxxx\ Face_dependency_info.dat -o /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator/Celebrity\ Face.app/xxxxxx\ xxxxxx
ld: warning: directory not found for option '-F/Users/sumitghosh/Documents/facebookSDK'
ld: warning: directory not found for option '-F/Users/gbs-mac/Desktop/Swapnil/xxxxxxx xxxxxx/xxxxxx'
ld: warning: directory not found for option '-FFace'
ld: file not found: /Users/gbs-mac/Library/Developer/Xcode/DerivedData/xxxxxxx-cbqfydingfpnbjblowdpmbcgwnmp/Build/Products/Debug-iphonesimulator/MyExistingApp.app/MyExistingApp
clang: error: linker command failed with exit code 1 (use -v to see invocation)
In your project's build setting remove everything from Framework Search paths and Library Search paths. Clean and build.
In your menu bar, go to Product > Clean and click it. Then try rebuilding the project.
I am working with an XCode project which was fine yesterday but today without any change in code I am getting following compile error.
Any suggestion? How can i fix it?
Ld DerivedData/OEiPhone/Build/Products/Debug-iphonesimulator/Project\ Sounds.app/Project\ Sounds normal i386
cd "/Users/admin/Desktop/App 2"
export IPHONEOS_DEPLOYMENT_TARGET=6.0
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.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 i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.2.sdk -L/Users/admin/Desktop/App\ 2/DerivedData/OEiPhone/Build/Products/Debug-iphonesimulator -L/Users/admin/Desktop/App\ 2/Classes/ListControl/OELib -L/Users/admin/Desktop/App\ 2/../../../iPad/API\'s/Google\ Analytics\ SDK/Library -L/Users/admin/Desktop/App\ 2/Classes/Analytic -LLibrary -F/Users/admin/Desktop/App\ 2/DerivedData/OEiPhone/Build/Products/Debug-iphonesimulator -filelist /Users/admin/Desktop/App\ 2/DerivedData/OEiPhone/Build/Intermediates/OEiPhone.build/Debug-iphonesimulator/Project\ Sounds.build/Objects-normal/i386/Project\ Sounds.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -licucore -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=6.0 -framework CoreMedia -framework AVFoundation -framework NewsstandKit -lsqlite3.0 -lz.1.2.5 -framework Foundation -framework UIKit -framework CoreGraphics -framework CFNetwork -framework QuartzCore -framework SystemConfiguration -lGoogleAnalytics_NoThumb -framework MediaPlayer -framework MessageUI -framework OpenGLES -framework CoreText -framework CoreLocation -framework MapKit -framework StoreKit -lxml2 -lGoogleAnalytics -Xlinker -dependency_info -Xlinker /Users/admin/Desktop/App\ 2/DerivedData/OEiPhone/Build/Intermediates/OEiPhone.build/Debug-iphonesimulator/Project\ Sounds.build/Objects-normal/i386/Project\ Sounds_dependency_info.dat -o /Users/admin/Desktop/App\ 2/DerivedData/OEiPhone/Build/Products/Debug-iphonesimulator/Project\ Sounds.app/Project\ Sounds
ld: warning: directory not found for option '-L/Users/admin/Desktop/App 2/Classes/ListControl/OELib'
ld: warning: directory not found for option '-L/Users/admin/Desktop/App 2/../../../iPad/API's/Google Analytics SDK/Library'
ld: warning: directory not found for option '-L/Users/admin/Desktop/App 2/Classes/Analytic'
ld: warning: directory not found for option '-LLibrary'
ld: library not found for -lGoogleAnalytics_NoThumb
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I had the same problem.
Make sure to remove the library in your
Project -> Build Phases -> Link Binary With Libraries
if you removed it or add it if it's missing.
This path
/Users/admin/Desktop/App 2/../../../iPad/API's/Google Analytics SDK/Library
Is pointing at a Library on your desktop. Is that library still there, or did you move/delete it?
I checked out a working app from SVN. Want to test it in iphone simulator. But the building failed.
Ld /Users/ludwig/Library/Developer/Xcode/DerivedData/MySoftware-eclocsslmbcdgibhlruzhzsnyctb/Build/Products/Debug-iphonesimulator/MySoftware.de.app/MySoftware.de normal i386
cd /Users/ludwig/MySoftware_SVN/MySoftware/trunk/MobileClient/iOS/MySoftware
setenv IPHONEOS_DEPLOYMENT_TARGET 4.3
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.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 i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk -L/Users/ludwig/Library/Developer/Xcode/DerivedData/MySoftware-eclocsslmbcdgibhlruzhzsnyctb/Build/Products/Debug-iphonesimulator -L/Users/ludwig/MySoftware_SVN/MySoftware/trunk/MobileClient/iOS/MySoftware/ZBarSDK -L/Users/ludwig/MySoftware_SVN/MySoftware/trunk/MobileClient/iOS/MySoftware -F/Users/ludwig/Library/Developer/Xcode/DerivedData/MySoftware-eclocsslmbcdgibhlruzhzsnyctb/Build/Products/Debug-iphonesimulator -filelist /Users/ludwig/Library/Developer/Xcode/DerivedData/MySoftware-eclocsslmbcdgibhlruzhzsnyctb/Build/Intermediates/MySoftware.build/Debug-iphonesimulator/MySoftware.build/Objects-normal/i386/MySoftware.de.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=4.3 -framework Security -framework MessageUI -framework AudioToolbox -framework Foundation -framework UIKit -framework CoreGraphics -framework CoreData -framework CoreMedia -framework CoreVideo -framework QuartzCore -liconv -framework AVFoundation -lzbar -o /Users/ludwig/Library/Developer/Xcode/DerivedData/MySoftware-eclocsslmbcdgibhlruzhzsnyctb/Build/Products/Debug-iphonesimulator/MySoftware.de.app/MySoftware.de
ld: library not found for -lzbar
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Can somebody help? Or need more information?!
I am not able to add a screenshot..
in the overview of the "other sources" there is the dict ZBarSDK and inside there is a headers and a resources folder and a file:
libzbar.a but the filename is in Red!? and i am not able to open it. Is this maybe the reason?
There's a particular way to install ZBAR. Follow these instructions : http://zbar.sourceforge.net/iphone/sdkdoc/install.html