XCode - 架构armv7 arm64的未定义符号 [英] XCode - undefined symbols for architecture armv7 arm64

问题描述

我去了一个较旧的项目，需要为其使用的扫描程序更新SDK。新的SDK已准备好64位，因此应用程序需要更新。
SDK是通过拖放到项目中安装的，但之后我在构建时遇到以下错误：

I've gone to an older project that needs to have the SDK updated for the scanner that it uses. The new SDK is 64bit ready and so the app needs updating. The SDK is installed by dragging and dropping into the project but after that I get the following error when building:

注意：我收到的错误指的是 arm64 但是这个当前说 armv7 因为我摆弄了。

Note: I was getting an error referring to arm64 but this one currently says armv7 because I fiddled.

架构armv7的未定义符号：

_AVMetadataObjectTypeUPCECode，引自：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController.o）_ AVMetadataObjectTypeEAN8Code ，
引自：
- [SoftScanController initWithDeviceObject：]在libScanApi.a（SoftScanController.o）中

_AVMetadataObjectTypeCode93Code，引自：
- [SoftScanController initWithDeviceObject ：]在libScanApi.a（SoftScanController.o）_ AVMediaTypeVideo中，引用
来自：
- [SoftScan initWithDelegate：] in libScanApi.a（SoftScanController.o）_ AVMetadataObjectTypeAztecCode，
引用F rom：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController.o）_ AVMetadataObjectTypeEAN13Code，
引用自：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController.o ）

_AVLayerVideoGravityResizeAspectFill，引自：
- [SoftScan start：]在libScanApi.a（SoftScanController.o）_ OBJC_CLASS _ $ _ AVCaptureVideoPreviewLayer中，引自：
objc-class libScanApi.a中的-ref（SoftScanController.o）_AVMetadataObjectTypePDF417Code，引自：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController.o）_ OBJC_CLASS _ $ _ AVCaptureSession，
引自： libScanApi.a中的
objc-class-ref（SoftScanController.o）_AVMetadataObjectTypeCode39Code，引自：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController.o）

_AVMetadataObjectTypeCode128Code，referen ced from：
- [SoftScanController中的[SoftScanController initWithDeviceObject：]（SoftScanController.o）_ AVMetadataObjectTypeQRCode，
引自：
- libScanApi.a中的[SoftScanController initWithDeviceObject：]（SoftScanController。 o）

_ OBJC_CLASS _ $ _ AVCaptureMetadataOutput，引自：
objc-class-ref in libScanApi.a（SoftScanController.o）_ AVMetadataObjectTypeCode39Mod43Code，引自：
- [SoftScanController initSithDeviceObject：]在libScanApi.a（SoftScanController.o）中

_ OBJC_CLASS _ $ _ AVCaptureDeviceInput，引用自：
objc-class-ref in libScanApi.a（SoftScanController.o）_ OBJC_CLASS _ $ _ AVCaptureDevice ，引用自：
objc-class-ref in libScanApi.a（SoftScanController.o）ld：symbol（s）找不到架构armv7 clang：错误：链接器
命令失败，退出代码为1（使用-v来查看调用）

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_$_AVCaptureVideoPreviewLayer", referenced from: objc-class-ref in libScanApi.a(SoftScanController.o) "_AVMetadataObjectTypePDF417Code", referenced from: -[SoftScanController initWithDeviceObject:] in libScanApi.a(SoftScanController.o) "_OBJC_CLASS_$_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)

所有出现的错误转到扫描仪的SDK。
我当前的构建设置是：

All of the errors that come up refer to the SDK for the scanner. My current build settings are:

架构：标准架构

基本SDK：最新（9.0）

Base SDK: latest(9.0)

仅限构建活动架构：否

Build Active architecture only : no

有效架构：armv7 armv7s arm64

valid architectures: armv7 armv7s arm64

任何帮助都会很受欢迎。

Any assistance would be well received.

推荐答案

看起来您没有将项目与 AVFoundation 框架链接。

It looks like you are not linking your project with the AVFoundation framework.

用户指南。

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