Zxing 'undefined symbols for architecture x86-x64' error - xcode

I use zxing lib in my OS X application. I've included zxing-objc to my project and simply copy-pasted code from zxing demo (zxing-root/objc/examples/demo) to the separate ViewController class. When trying to compile project, I get the following linker errors:
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_QTCaptureDevice", referenced from:
objc-class-ref in ScanViewController.o
"_OBJC_CLASS_$_ZXCapture", referenced from:
objc-class-ref in ScanViewController.o
"_QTMediaTypeMuxed", referenced from:
-[ScanViewController performVideoSourceScan] in ScanViewController.o
"_QTMediaTypeVideo", referenced from:
-[ScanViewController performVideoSourceScan] in ScanViewController.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've carefully checked all code and compared my project properties (including c++ compiler options) to demo project properties, and everything is done right.

You need to add the necessary frameworks to your app target. You can look in the sample app for an example. Select the target in Xcode, select Build Phases, and open the Link With Libraries entry. You'll see that it includes both QuartzCore and zxing-objc-framework. It sounds like you don't have those in your project.

Related

Undefined symbols for architecture arm64: previous solution doesn't work in Xcode 12.5.1

I am working on a flutter project. My project includes tflite and amplify packages. it works fine with android but whenever I try to build it in Xcode I am getting this following errors:
Undefined symbols for architecture arm64:
"OBJC_CLASS$_FlutterStandardTypedData", referenced from:
objc-class-ref in tflite(TflitePlugin.o)
enter code here
"_FlutterMethodNotImplemented", referenced from:
-[TflitePlugin handleMethodCall:result:] in tflite(TflitePlugin.o)
"OBJC_CLASS$_FlutterMethodChannel", referenced from:
objc-class-ref in tflite(TflitePlugin.o)
"OBJC_METACLASS$_FlutterAppDelegate", referenced from:
OBJC_METACLASS$_AppDelegate in AppDelegate.o
"OBJC_CLASS$_FlutterAppDelegate", referenced from:
OBJC_CLASS$_AppDelegate in AppDelegate.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Please help me with this. I have been stuck with this issue for more than a week now. Thank you.
I have added a snippet from Xcode which shows the current settings for Architectures. There are past suggestions to add arm64 as a Valid architectures. However, as you see there is no option for that. I added arm64 in excluded architectures as shown in the picture. It didn't work for me.

Adding Static Library In Xcode 6

I'm using Xcode 6.0.1 and need to add a library libpt.a to my C project. I cannot figure out how to properly integrate it into my project. I have already done Link Binary With Libraries however I still continue to get this error:
Undefined symbols for architecture x86_64:
"_pt_add_xpage", referenced from:
_main in main.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 assuming that the above error means that the library has not been integrated correctly. I have already added the header file pt.h and included into my project. What am I doing wrong?

xCode - Undefined symbols for architecture x86_64: MWPhotoBrowser

I'm trying to use the MWPhotoBrowser project in my project. I followed the whole installation process and was able to import the MWPhotoBrowser.h file. When I tried to build, I run into this error...
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_MWPhotoBrowser", referenced from:
objc-class-ref in PhotoBrowserViewController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Does anyone know how to resolve this?
Thanks
For anyone getting this issue...Please check if you correctly linked your project to the libMWPhotoBrowser.a file under Build Phases in your target settings !

Xcode5, project deploys to device but get's a build error for simulator

When I deploy my app to my phone via xcode5 it works find, however when I try to deploy it to one of the simulators I get the following errors.
ld: warning: ignoring file /Users/benpearce/Downloads/MapKit.framework/MapKit, missing required architecture i386 in file /Users/benpearce/Downloads/MapKit.framework/MapKit (2 slices)
Undefined symbols for architecture i386:
"_MKCoordinateRegionMakeWithDistance", referenced from:
-[MapKitView createViewWithOptions:] in MapKit.o
"_OBJC_CLASS_$_MKMapView", referenced from:
objc-class-ref in MapKit.o
"_OBJC_CLASS_$_MKPinAnnotationView", referenced from:
objc-class-ref in MapKit.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Can anyone see what's going on?
The MapKit framework is missing a binary for the Simulator which is i386. The Simulator is a Mac application and needs a code resource compiled for the i386 Intel processor. Where did you get MapKit?
If this is Apple's MapKit you should just be including the framework provided with Xcode. It is added in Xcode by selecting the Project, Build Phases, Link Binaries with Libraries, +, select MapKit.framework.
Also the framework in in your Downloads directory, why?

Undefined symbols for architecture i386: "_OBJC_CLASS_$_SDZInfo" (sudzc)

I'm developing an application with XCode 4.1.1
I added the library from http://sudzc.com/ for consume web services.
When I compile the application, it gives this error:
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_SDZInfo", referenced from:
objc-class-ref in SimpleTableViewAppDelegate.o
objc-class-ref in RootViewController.o
"_OBJC_CLASS_$_SoapFault", referenced from:
objc-class-ref in RootViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
The configuration of XCode is Build 2.4 and Deplo yment Target 5.1.
This solution does not working for me because SimpleTableViewAppDelegate.m and RootViewController.m are added "You can get this type of error if your class' .m file is not listed under the "Compile Sources" step of the "Build Phases" tab of your target. Normally Xcode does this for you, but sometimes it loses the plot and you need to add the .m file manually"
Thanks in advance for your help.
The error is saying that the missing files are the ones that contain SDZInfo and SoapFault. The two .m files you mention must already be in the project because they are listed as the places where those things are required.

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