Undefined symbols for architecture armv7: "_OBJC_CLASS_$_SRWebSocket"

Question

I'm using SocketRocket as a WebSocket library which I have installed through the cocoabot package manager in a MAC for a platform with iOS 6.

When in appDeligate.m I put the header files

#import <SocketRocket/SRWebSocket.h>

and in a function I'm using:

SRWebSocket *_webSocket
_webSocket.delegate = nil;
[_webSocket close];

_webSocket = [[SRWebSocket alloc] initWithURLRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"ws://192.168.178.178:6001"]]];
_webSocket.delegate = self;

NSLog(@"Opening Connection...");
[_webSocket open];

In a standalone project this works quite fine, however when I include it in my project I receive the following error:

Ld /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos/myProject.app/myProject normal armv7 cd /Users/devuser/Documents/cordovadev/myProject 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 armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.2.sdk -L/Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos -F/Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos -F/Applications/Xcode.app/Contents/Developer/Library/Frameworks -F/Users/devuser/Library/Developer/GStreamer/iPhone.sdk -filelist /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Intermediates/myProject.build/Debug-iphoneos/myProject.build/Objects-normal/armv7/myProject.LinkFileList -miphoneos-version-min=6.0 -dead_strip -lresolv -lstdc++ -framework CoreAudio -framework AudioToolbox -framework VideoToolbox -framework OpenGLES -framework AssetsLibrary -framework QuartzCore -weak_framework CoreFoundation -weak_framework UIKit -weak_framework AVFoundation -weak_framework CoreMedia -weak_framework CoreMotion -weak-lSystem -force_load /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos/libCordova.a -ObjC -fobjc-link-runtime -framework GStreamer -lresolv -weak_framework CoreMedia -framework CoreVideo -framework OpenGLES /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos/libCordova.a -liconv -framework CoreMotion -framework CoreLocation -framework ImageIO -framework OpenAL -framework AssetsLibrary -framework Foundation -weak_framework UIKit -framework CoreGraphics -framework AddressBook -framework AddressBookUI -framework AudioToolbox -weak_framework AVFoundation -framework CFNetwork -framework MediaPlayer -framework QuartzCore -framework SystemConfiguration -framework MobileCoreServices -lPods-myProject -Xlinker -dependency_info -Xlinker /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Intermediates/myProject.build/Debug-iphoneos/myProject.build/Objects-normal/armv7/myProject_dependency_info.dat -o /Users/devuser/Library/Developer/Xcode/DerivedData/myProject-fxqgbeafqfsypwclwioqqupwexue/Build/Products/Debug-iphoneos/myProject.app/myProject

Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_SRWebSocket", referenced from: objc-class-ref in AppDelegate.o

ld: symbol(s) not found for architecture armv7

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

I've checked around but I couldn't find anything relevant. Any help?

Answer 1

I had to link the socket library into the Build Settings.

Project->Build Settings->Other Linker Flags->Debug/Release I added

-ObjC -l SocketRocket -l icucore -framework CFNetwork -framework Security

and now it's working!