分析应用程序ParseFacebookUtils中的框架错误

Question

我在应用程序中将Parse Framework更新到了最新版本，现在我的应用程序中出现了大量错误，主要与框架有关：

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_FBSDKAccessToken", referenced from:
      objc-class-ref in ParseFacebookUtilsV4(PFFacebookUtils.o)
      objc-class-ref in ParseFacebookUtilsV4(PFFacebookAuthenticationProvider.o)
  "_OBJC_CLASS_$_FBSDKApplicationDelegate", referenced from:
      objc-class-ref in ParseFacebookUtilsV4(PFFacebookUtils.o)
  "_OBJC_CLASS_$_FBSDKLoginManager", referenced from:
      objc-class-ref in ParseFacebookUtilsV4(PFFacebookAuthenticationProvider.o)
  "_OBJC_CLASS_$_FBSDKSettings", referenced from:
      objc-class-ref in ParseFacebookUtilsV4(PFFacebookAuthenticationProvider.o)
  "std::string::find_first_of(char const*, unsigned long, unsigned long) const", referenced from:
      MacStringUtilsPFC_::IntegerValueAtIndex(std::string&, unsigned int) in ParseCrashReporting(string_utilities.o)
  "std::string::find_first_not_of(char const*, unsigned long, unsigned long) const", referenced from:
      MacStringUtilsPFC_::IntegerValueAtIndex(std::string&, unsigned int) in ParseCrashReporting(string_utilities.o)
  "std::string::substr(unsigned long, unsigned long) const", referenced from:
      MacStringUtilsPFC_::IntegerValueAtIndex(std::string&, unsigned int) in ParseCrashReporting(string_utilities.o)
  "std::string::_Rep::_M_destroy(std::allocator<char> const&)", referenced from:
      BreakpadPFC_::HandleUncaughtException(NSException*) in ParseCrashReporting(Breakpad.o)
      BreakpadPFC_::Initialize(NSDictionary*) in ParseCrashReporting(Breakpad.o)
      BreakpadPFC_::GenerateReport(NSDictionary*) in ParseCrashReporting(Breakpad.o)

我已经确认添加了框架，所以我不确定错误是由什么引起的。

Answer 1

不确定您是否在使用CocoaPods，但如果是，我今天在更新时遇到了同样的问题。从外观上看，"Facebook iOS SDK"one_answers"ParseFacebookUtils"已从最新更新中删除。在不深入了解错误的情况下，链接器错误似乎正在发生。在我的Podfile中，我简单地添加了：

pod 'Facebook-iOS-SDK'
pod 'ParseFacebookUtils'

如果不使用CocoaPods，那么确保这两个库在源代码中、清理和重建可能会有所帮助。