XCode5 simulator: unknown option character `X'

Question

I am currently blocked by a linker error which happens ONLY on XCode5 (XCode4 compiles fine) and ONLY on the simulator (normal devices compile fine).

When I try to compile, I get a "Apple Mach-O Librarian Error" which gives me the following wall of text:

Libtool build/DevOnly-iphonesimulator/libCozi\ Common\ Code.a normal i386 cd /Users/jr/ios/app/iCozi setenv IPHONEOS_DEPLOYMENT_TARGET 4.3 setenv PATH "/Applications/XCode5/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/XCode5/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Applications/XCode5/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static -arch_only i386 -syslibroot /Applications/XCode5/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk -L/Users/jr/ios/app/iCozi/build/DevOnly-iphonesimulator -L/Users/jr/ios/app/iCozi/../../ext/aiMatch/SASIA_iOS_SDK-iphonesimulator -L/Users/jr/ios/app/iCozi/../../ext/GoogleAdsSDK-iphone-v3.1/Library -L/Users/jr/ios/app/iCozi/../../ext/Google\ Analytics\ SDK/Library -L/Users/jr/ios/app/iCozi/../../ext/AdMarvel_iOS_SDK_2_9_1/AdMarvelSDK -L/Users/jr/ios/app/iCozi/../../ext/libComScore-1.1107.12 -L/Users/jr/ios/app/iCozi/../../ext/TestFlightSDK -L/Users/jr/ios/app/iCozi/../../ext/mBlox-SDK/Debug-universal -L/Users/jr/ios/app/iCozi/../../ext/mBlox-SDK/Release-universal -L/Users/jr/ios/app/iCozi/../../ext/FacebookSDK/FacebookSDK.framework/Versions/A -L/Users/jr/ios/app/iCozi/../../ext/GoogleConversionTrackingSDK -L/Users/jr/ios/app/iCozi/../../ext/TapjoyAdvertiserSDK/TapjoyAdvertiserLibrary -L/Users/jr/ios/app/iCozi/../../ext/MobileAppTracker.framework/Versions/A -filelist /Users/jr/ios/app/iCozi/build/iCozi.build/DevOnly-iphonesimulator/Cozi\ Common\ Code.build/Objects-normal/i386/Cozi\ Common\ Code.LinkFileList -all_load -ObjC -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements -Xlinker /Users/jr/ios/app/iCozi/build/iCozi.build/DevOnly-iphonesimulator/Cozi\ Common\ Code.build/Cozi\ Common\ Code.xcent -framework MobileAppTracker /Applications/XCode5/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/usr/lib/libz.dylib -framework Foundation -framework UIKit -framework CoreGraphics -framework QuartzCore -framework Security -framework MobileCoreServices -framework CFNetwork -framework SystemConfiguration -weak_framework MessageUI -framework QuartzCore /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20UI.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20UINavigator.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20UICommon.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20Style.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20Network.a /Users/jr/ios/ext/three20/Build/Products/Release-iphonesimulator/libThree20Core.a -framework CoreLocation -weak_framework MediaPlayer -weak_framework iAd -framework AVFoundation -framework AudioToolbox -lGoogleAnalytics /Applications/XCode5/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/usr/lib/libsqlite3.0.dylib -weak_framework EventKit -weak_framework EventKitUI -lTestFlight -framework comScore -framework MDS-SDK-PhoneGap -lMDSCore -framework FacebookSDK -lGoogleConversionTracking /Users/jr/ios/ext/TapjoyAdvertiserSDK/TapjoyAdvertiserLibrary/TapjoyAdvertiserLibrary.a /Users/jr/ios/ext/FacebookSDK/FacebookSDK.framework/Versions/A/FacebookSDK /Users/jr/ios/ext/MobileAppTracker.framework/Versions/A/MobileAppTracker -o /Users/jr/ios/app/iCozi/build/DevOnly-iphonesimulator/libCozi\ Common\ Code.a

/Applications/XCode5/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: unknown option character `X' in: -Xlinker Usage: /Applications/XCode5/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] Usage: /Applications/XCode5/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table ] [-seg_addr_table_filename ] [-all_load] [-noall_load] Command /Applications/XCode5/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool failed with exit code 1

The root of the problem seems to be "unknown option character `X' in: -Xlinker", but Google doesn't give much help with that error: https://www.google.com/search?q=%22%60X%27+in%3A+Xlinker%22

"XLinker" appears four times in the mess above (" . . . -all_load -ObjC -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements -Xlinker /Users/jr/ios/app/iCozi/build/iCozi.build/DevOnly-iphonesimulator/Cozi\ Common\ Code.build/Cozi\ Common\ Code.xcent . . . ")

Just for grins, I tried removing the spaces from the "Cozi Common Code" target name, but that didn't help.

Again, this compiles just fine on XCode4 simulator, and it compiles just fine in XCode5 for running on physical devices, including an iPod and an iPad, but every simulator in XCode5 has this problem (iPhone/iPod/iPad, both normal and retina, on iOS5/iOS6/iOS7).

I'd REALLY appreciate anybody who can help me get to the bottom of this. Thanks!

Answer 1

This is not the ultimate solution, But in my case, This accord because I was trying to use "ReactiveCocoa" with this pod:

pod 'ReactiveCocoa', '3.0.0-alpha.1'

And it automatically installed "LlamaKit", witch you don't necessarily need when using ReactiveCocoa...

So first I removed the podfile, run "pod install". Then deleted the "Podfile.lock" file (At the same folder as your project).

Then used this pod:

pod 'ReactiveCocoa'

and run "pod install" once again. clean project, run, and good luck.

Answer 2

I met the same problem, and my approach to solve is to erase the unsupported option "-Xliner" in the command line of libtool (Actually i think this option should be supported by libtool, as is documented in the manual of libtool in gnu. Might be xcode disable it in libtool?)

To erase this option, i first try to find out which setting generate it. In my side, it's code signing. I built the project with code signing "iOS Distribution" while an identity correspond to this signing is also exist in keychain. This will result in the build tool read this identity and try to do something like generate extra link option for libtool.

To dismiss it, I change the signing to "iOS Developer". And i think a remove of correspond identity also works.

Hope my solution could be helpful to you.

Answer 3

First check the scheme that you build for Debug (Product -> Scheme -> Manage schemes then select target and press Edit) Go to the Build Settings (both in project and target), find Code signing and change to Automatic in Debug in Provisioning Profile and Don't code sign in Debug in Code Signing Identity. It helped me, hope it will help someone else too)

Answer 4

FWIW, this exact error can also occur on Xcode 7.3.1 if the "Code Signing Entitlements" build setting has been mistakenly set for an static library build target, where it doesn't really apply.

Answer 5

My first quick take on this error is that it's a false alarm. If I were you, I would do some troubleshooting accordingly and clean up Xcode, project and simulator settings etc.

Try deleting Xcode's preferences file (from common and user library both) and restart Xcode -

/Library/Preferences

com.apple.dt.Xcode

/Users/YourUsername/Library/Preferences ( I have following 3 files related to Xcode there )

com.apple.dt.Xcode.plist

com.apple.dt.Xcode.LSSharedFileList.plist

com.apple.dt.Xcode.plist.BoGEJ0T

Alternatively - try building the project on some other machine (or switch to some other user on same machine).

Answer 6

I had a file with a "+" in the file name in my pods folder for some reason. Deleted it and it worked great