iOS-体系结构arm7，arm64的未定义符号

Question

I looking at a older iOS project I haven't done anything with for a while and I need to update the SDK for a scanner so it is 64 bit. I added the files for the scanner kit (drag and drop) into the project but now when I build I get the error undefined symbols for architecture armv7

It was referring to arm64 but I tried a couple of things and now it's referring to armv7 (setting other linker flags and editing the basic build settings).

My build settings are: Architecture: standard Base SDK 8.4 Build active architecture only: no Valid architectures: armv7 armv7s arm64

The output from building is:

Ld /Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Intermediates/xxx.build/Debug-iphoneos/xxx.build/Objects-normal/armv7/xxxx normal armv7 cd "/Users/meetingroom/Documents/iOS Projects/xxx Project/xxx iOS8" export IPHONEOS_DEPLOYMENT_TARGET=8.0 export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/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/iPhoneOS8.4.sdk -L/Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Products/Debug-iphoneos -L/Users/meetingroom/Documents/iOS\\ Projects/xxx\\ Project/xxx\\ iOS8/xxx/ScanAPI/lib -F/Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Produc ts/Debug-iphoneos -filelist /Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Intermediates/xxx.build/Debug-iphoneos/xxx.build/Objects-normal/armv7/xxx.LinkFileList -dead_strip -fobjc-arc -fobjc-link-runtime -stdlib=libc++ -miphoneos-version-min=8.0 -framework AudioToolbox -framework ExternalAccessory -lsqlite3.0 -framework UIKit -framework Foundation -framework CoreGraphics -lScanApi -Xlinker -dependency_info -Xlinker /Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Intermediates/xxx.build/Debug-iphoneos/xxx.build/Objects-normal/armv7/xxx_dependency_info.dat -o /Users/meetingroom/Library/Developer/Xcode/DerivedData/xxx-apetpmawlnpfonginyycjwqagzuc/Build/Intermediates/xxx.build/Debug-iphoneos/xxxx.build/Objects-normal/armv7/xxx

Undefined symbols for architecture armv7: "_AVMetadataObjectTypeUPCECode", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeEAN8Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeCode93Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMediaTypeVideo", referenced from: -[SoftScan initWithDelegate:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeAztecCode", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeEAN13Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVLayerVideoGravityResizeAspectFill", referenced from: -[SoftScan start:] in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_AVCaptureVideoPreviewLayer", referenced from: objc-class-re f in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypePDF417Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_AVCaptureSession", referenced from: objc-class-ref in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeCode39Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeCode128Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeQRCode", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_AVCaptureMetadataOutput", referenced from: objc-class-ref in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypeCode39Mod43Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_AVCaptureDeviceInput", referenced from: objc-class-ref in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_AVCaptureDevice", referenced from: objc-class-ref in libScanApi.a(SoftScanController.o) ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)

The only errors are related to the SDK but I confirmed that I have installed that 64 bit version. Thanks in advance

Answer 1

I'm not sure how I posted this question up twice but it was answered here ( XCode - undefined symbols for architecture armv7 arm64 ) . In brief I hadn't linked the AVFoundation in my project.