Undefined symbols for architecture i386

Question

Possible Duplicate    symbol s  not found for architecture i386       I have an app to complete  and when I start trying to understand what the previous developer did  it was done with Xcode 3 I think  by executing the simulator  Xcode 4 show me 25 issues       Ld build Debug-iphonesimulator RadioPlayer app RadioPlayer normal i386     cd  Users haithembenhammouda Desktop SonVid  o     setenv MACOSX DEPLOYMENT TARGET 10 6     setenv PATH   Developer Platforms iPhoneSimulator platform Developer usr bin  Developer usr bin  usr bin  bin  usr sbin  sbin       Developer Platforms iPhoneSimulator platform Developer usr bin gcc-4 2 -arch i386 -isysroot  Developer Platforms iPhoneSimulator platform Developer SDKs iPhoneSimulator4 3 sdk -L Users haithembenhammouda Desktop SonVid  o build Debug-iphonesimulator -L Users haithembenhammouda Desktop SonVid  o Classes RadioKitLib -L Users haithembenhammouda Desktop SonVid  o -F Users haithembenhammouda Desktop SonVid  o build Debug-iphonesimulator -filelist  Users haithembenhammouda Desktop SonVid  o build SonVid  o build Debug-iphonesimulator RadioPlayer build Objects-normal i386 RadioPlayer LinkFileList -mmacosx-version-min 10 6 -ObjC -Xlinker -objc abi version -Xlinker 2 -framework Foundation -framework UIKit -framework CoreGraphics -framework SystemConfiguration -framework MediaPlayer -framework CFNetwork -framework AudioToolbox -framework QuartzCore -lsqlite3 0 -framework AVFoundation -lRadioKit -framework MessageUI -o  Users haithembenhammouda Desktop SonVid  o build Debug-iphonesimulator RadioPlayer app RadioPlayer Undefined symbols for architecture i386      OBJC CLASS   RadioKit   referenced from        objc-class-ref in RadioPlayerViewController o     objc class name UIColor   referenced from        pointer-to-literal-objc-class-name in libRadioKit a BufferView o      objc class name UIView   referenced from         objc class name BufferView in libRadioKit a BufferView o      objc class name NSObject   referenced from         objc class name ASE Event in libRadioKit a ASE Event o         objc class name AudioStreamEngine in libRadioKit a AudioStreamEngine o         objc class name RadioKit in libRadioKit a RadioKit o         objc class name XMLMetaParser in libRadioKit a XMLMetaParser o      objc class name NSDate   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o      objc class name NSValue   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o      objc class name NSScanner   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o      objc class name NSCharacterSet   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o      objc class name NSAutoreleasePool   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o        pointer-to-literal-objc-class-name in libRadioKit a XMLMetaParser o        pointer-to-literal-objc-class-name in libRadioKit a reachability o      objc class name NSFileManager   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o      objc class name NSURLConnection   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o        pointer-to-literal-objc-class-name in libRadioKit a XMLMetaParser o      objc class name NSThread   referenced from        pointer-to-literal-objc-class-name in libRadioKit a AudioStreamEngine o          etc  ld  symbol s  not found for architecture i386 collect2  ld returned 1 exit status   PS  I checked frameworks and all of them exist

User · Answer

Add the framework required for the method used in the project target in the "Link Binaries With Libraries" list of Build Phases, it will work easily. Like I have imported to my project

QuartzCore.framework

For the bug

Undefined symbols for architecture i386:

User · Answer

A bit late to the party but might be valuable to someone with this error    I just straight copied a bunch of files into an Xcode project  if you forget to add them to your projects Build Phases you will get the error  Undefined symbols for architecture i386   So add your implementation files to Compile Sources  and Xib files to Copy Bundle Resources   The error was telling me that there was no link to my classes simply because they weren t included in the Compile Sources  quite obvious really but may save someone a headache

User · Answer

well i found a solution to this problem for who want to work with xCode 4  All what you have to do is importing frameworks from the SimulatorSDK folder   Developer Platforms iPhoneSimulator platform Developer SDKs iPhoneSimulator4 3 sdk System Library Frameworks  i don t know if it works when you try to test your app on a real iDevice  but i m sure that it works on simulator   ENJOY

User · Answer

At the risk of sounding obvious  always check the spelling of your forward class files   Sometimes XCode  at least XCode 4 3 2  will turn a declaration green that s actually camel cased incorrectly   Like in this example     OBJC CLASS   RadioKit   referenced from    objc-class-ref in RadioPlayerViewController o   If RadioKit was a class file and you make it a property of another file  in the interface declaration  you might see that  Radiokit  rk    has  Radiokit  in green when the actual decalaration should be   RadioKit  rk    This error will also throw this type of error   Another example  in my case   is when you have  iPhone and  iphone extensions on your class names for universal apps   Once I changed the appropriate file from  iphone to the correct  iPhone  the errors went away

[xcode] Undefined symbols for architecture i386

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