I'm trying to include several different items from AudioCore, in particular, AQRecorder. This does, however, have dependencies on c++ code. Normally this is not an issue as I just rename my view controller to have the extension .mm and everything is great. But in this case, my dependency on AQRecorder.h indirectly goes to my main.m which is causing me great pain.
I've tried several different things including the following:
1) Changing all .m and .cpp files -> .mm files
Everything compiles perfectly, however, it can't deploy to my iOS device or simulator as I get this error when deploying to the device:
"Choose a destination with a supported architecture in order to run on
this device."
I'm using XCode 4.6 and my valid architectures are armv7 & armv7s (I've played with these but with no luck).
2) Tried using opaque pointers such as that in this guide:
http://philjordan.eu/article/mixing-objective-c-c++-and-objective-c++
I still run into the same issue where it won't compile.
Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_AQWrappedRecorder", referenced from:
objc-class-ref in RTPPacketSender.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
My dependencies are as follows:
AQRecorder.h -> RTPPacketSender.h -> ActiveConversationViewController.h -> ConversationViewController.h -> AppDelegate.h -> main.m
Can anybody else recommend anything to try. I've quite literally spent all day debugging this issue with no luck.
Vince
Related
I made a library and I want to test it in a dummy project I made. Both projects are made in Objective-C. When I build my library I get a Successful Build message and three files under the Product directory:
FooIOS.bundle
libFooIOS.a
include
I place these three files at the root level of my dummy project and when I open my myDummyProject.xcworkspace file I see them in my project hierarchy. However, when I build my project I get the following error:
Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_FooSelectedPageViewController", referenced from:
objc-class-ref in libFooIOS.a(FooViewController.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I did away with some of the obvious checks:
Made sure to reference my external library
I also made sure that both my library and project architectures are set as armv7 arm64
I don't know what else to do. I may be missing another configuration step or it may even be the way I declared something in my library that doesn't conform with my dummy project. Or a discrepancy between projects, perhaps? Any hints or leads would be a great help. Thanks.
I am totally stuck with an error I am getting when trying to test project on the simulator.
Error looks like:
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_KeyboardViewController", referenced from:
objc-class-ref in KeyboardPreferencesController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I am building custom keyboard using keyboard extension and what I am trying to do is that in main application I am implementing settings view to modify keyboard like font change... so of course, it needs to be linked to extension header file KeyboardViewController.h
I have tried to add Other Linker Flags -> $(inherited) in both debug and release, also tried to switch Build Active Architecture Only -> YES but it also does not worked for me.
So is there any other solution for this because I can not find anything what will work for me.
Thanks in advance!
You need to compile and link the implementation file (KeyboardViewController.m?) into your target.
Use Xcode's File Inspector to make sure target membership is turned on. Look at the build phases to make sure the implementation file is included.
If those things are correct, look at the KeyboardViewController.m to make sure it actually has a #implementation section.
I've done hours and hours of searching and still no luck (read a lot of stackoverflow as well).
I am trying to implement FDTake via Cocoapods. When I try and run it I get the following:
undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_FDTakeController", referenced from:
objc-class-ref in VendeViewController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I know there is many similar questions around SO but all their solutions don't seem to work for me.
From the logs I can assume that you would be using a static library which is not build for simulator(architecture x86_64).
The library is only compiled for device and it needs to be complied and build for simulator also. Then the two static files (one abc.a for device and one abc.a for simulator) needs to be fat file i.e these files should be merged together using lipo command on terminal to create a fat file. Now when you use this fat file it will work both for simulator as well as device.
But the important thing is that you should have the source to compile and build the static libraries for simulator and device. After which you merge these to create a fat file which will work on all the defined architectures.
In case you are using third party static library (SDK) then you need to contact the respected party.
I have XCode library I wrote which I use inside Unity3D application.
The library works and now I need to make a change in the implementation, not the interface.
The problem is that in the XCode project created from Unity3D, when I use my library .a file I get this error (I've remove the specific class names).
Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_ABNUnityativeController", referenced from:
_OBJC_CLASS_$_ABUnityNativeController in libABSDK_Unity_NativeController_iOS.a(ABUnityNativeController.o)
"_OBJC_METACLASS_$_ABNativeController", referenced from:
_OBJC_METACLASS_$_ABUnityNativeController in libABSDK_Unity_NativeController_iOS.a(ABUnityNativeController.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I'm pretty sure the problem is how I compile my library.
I find that my project settings were bad.
When I choose the main project (I also have sub XCode project in it) inside Build Phases -> Link Binary With Libraries I had to add my sub-project which was listed under Workspace directory.
i am getting this error:
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_ASIHTTPRequest", referenced from:
objc-class-ref in FirstViewController.o
"_OBJC_CLASS_$_SBJsonParser", referenced from:
objc-class-ref in FirstViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Note i have added the frameworks core graphics,system configuration,mobile core services,libz.dylib,libz.1.2.5.dylib,CF Network,UI Kit and Foundation.
I have searched all the forums and spend almost 4 days but just don't find the cause.
When i comment my ASIHTTPRequest and SBJSON code lines,it works fine.
I have added all the classes for ASIHTTPRequest and SBJSON and checked thrice.
Could anyone suggest what am i doing wrong?
I would take a look at the Build Phases section in your Target. Under "Compile Sources", make sure you see the .m files for ASIHTTPRequest and for SBJson. Sometimes when you drag external classes into a project, even if you check the box to copy the files into your project, they don't make it into these compile sources. When you drag a file into Xcode, there is a check box to add the file to the target. If this isn't checked, the file won't make it into the Compile Sources. Delete the files and re-add them, ensuring this file is checked (or you can add the .m files manually if you'd like).
For ASIHTTP Request add the following frameworks:
libz.1.2.5.dylib
SystemConfiguration
UIKit
Foundation
CoreGraphics
MobileCoreServices
CFNetworks
If you are using ASIHttp classes in iOS 5 or later, you need to turn ARC off for the ASIHttpRequest classes in Project-> Build Phases -> Compile Sources by using -fno-objc-arc for the ASI API classes.
Hope it solves the problem.
i had this same problem , but when i included the following frame-work
its working fine now..Don't forget to include -fno-objc-arc in the compile source
Best Wishes.......
For the ASIHTTPRequest error, it sounds like you've not added ASIHTTPRequest.m to your project.
(Or you have added ASIHTTPRequest.m, but have forgotten to mention the 4 billion errors xcode is emitting about ARC - see Why are my ASIHTTPRequest files showing ARC errors? )