ios - 适用于 iOS 的 Google+ 登录(Apple mach-o 链接器错误)

Question

早上好

我正在尝试将 Google Plus 登录集成到我的第一个 iOS 应用程序中，并按照 Google 在 https://developers.google.com/+/mobile/ios/sign-in 中提供的所有步骤进行操作。我在代码中没有任何错误，但是在编译项目时出现了错误:

我收到 18 个错误“Apple mach-o 链接器错误”，我不知道为什么，因为我遵循了每一步，一切似乎都是正确的。

下面是错误代码，我不知道怎么解决，希望有人能帮我解决。

      Undefined symbols for architecture armv7:
  "_OBJC_CLASS_$_ALAssetsLibrary", referenced from:
      objc-class-ref in GooglePlus(NSData+GPPAdditions.o)
      objc-class-ref in GooglePlus(UIDevice+GPPAdditions.o)
  "_kABPersonFirstNameProperty", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABAddressBookCopyArrayOfAllPeople", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_kABPersonEmailProperty", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABAddressBookGetPersonCount", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABPersonHasImageData", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABPersonCopyImageDataWithFormat", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABRecordCopyValue", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABMultiValueGetCount", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_ABAddressBookCreateWithOptions", referenced from:
      +[GPPAddressBook loadDeviceContactsWithHandler:] in GooglePlus(GPPAddressBook.o)
  "_ABMultiValueCopyValueAtIndex", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_MPMoviePlayerThumbnailImageKey", referenced from:
      -[GPPMediaPreviewView thumbnailImageRequestDidFinish:] in GooglePlus(GPPMediaPreviewView.o)
  "_MPMoviePlayerThumbnailImageRequestDidFinishNotification", referenced from:
      -[GPPMediaPreviewView initWithFrame:mediaAttachment:] in GooglePlus(GPPMediaPreviewView.o)
      -[GPPMediaPreviewView thumbnailImageRequestDidFinish:] in GooglePlus(GPPMediaPreviewView.o)
  "_OBJC_CLASS_$_CMMotionManager", referenced from:
      objc-class-ref in GooglePlus(GPPSpamSignal.o)
  "_ABAddressBookRequestAccessWithCompletion", referenced from:
      +[GPPAddressBook loadDeviceContactsWithHandler:] in GooglePlus(GPPAddressBook.o)
  "_kABPersonLastNameProperty", referenced from:
      ___48+[GPPAddressBook loadDeviceContactsWithHandler:]_block_invoke in GooglePlus(GPPAddressBook.o)
  "_OBJC_CLASS_$_MPMoviePlayerController", referenced from:
      objc-class-ref in GooglePlus(GPPMediaPreviewView.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

提前致谢。

Answer 1

第 3 步中的这个库 AssetsLibrary.framework 不包含在您的项目中，这就是您收到此错误的原因。

试试这些:

1. 您需要将 AssetsLibrary 框架添加到目标的“Link Binary With Libraries”构建阶段。

2. 尝试使用 Command+Shift+K 清理您的项目并再次添加所需的框架。希望它会开始工作

3. 将文件复制到您的项目中，但忘记检查要将文件添加到的目标。解决:打开正确目标的构建阶段，展开编译源并添加缺少的 .m 文件。

另一个原因，可能是:

1. 您包含一个静态库，该库是为另一种体系结构构建的，例如 i386，您主机上的模拟器。解决:

如果您有多个来自库供应商的库文件要包含在项目中，您需要包含一个用于模拟器 (i386) 的文件和一个用于设备(​​例如 armv7)的文件。