c++ - “Undefined symbols for architecture x86_64” Xcode

Question

这是我第一次使用Xcode V11.3.1

我正在尝试在Xcode上编译Buildbox 3项目，但出现错误列表，
36错误全部从以下开始:

Undefined symbol:

和这个消息

Undefined symbols for architecture x86_64:
  "PTAdInvoker::rewardedVideoDidReward(char const*, bool)", referenced from:
      -[AdIntegratorManager rewardedVideoDidReward:] in AdIntegratorManager.o
  "PTAdInvoker::interstitialFailed(char const*)", referenced from:
      -[AdIntegratorManager interstitialFailed:] in AdIntegratorManager.o
  "PTAdInvoker::interstitialLoaded(char const*)", referenced from:
      -[AdIntegratorManager interstitialLoaded:] in AdIntegratorManager.o
  "PTAdInvoker::rewardedVideoFailed(char const*)", referenced from:
      -[AdIntegratorManager rewardedVideoFailed:] in AdIntegratorManager.o
  "PTAdInvoker::bannerFailed(char const*)", referenced from:
      -[AdIntegratorManager bannerFailed:] in AdIntegratorManager.o
  "PTAdInvoker::rewardedVideoLoaded(char const*)", referenced from:
      -[AdIntegratorManager rewardedVideoLoaded:] in AdIntegratorManager.o
  "PTAdInvoker::bannerLoaded(char const*)", referenced from:
      -[AdIntegratorManager bannerLoaded:] in AdIntegratorManager.o
  "_AOBSendInterstitialAdAttemptReport", referenced from:
      -[AdIntegratorManager interstitialImpression:] in AdIntegratorManager.o
      -[AdIntegratorManager interstitialFailed:] in AdIntegratorManager.o
  "PTAdInvoker::networkFailed(char const*)", referenced from:
      -[AdIntegratorManager networkFailed:] in AdIntegratorManager.o
  "_AOBStartSessionReporting", referenced from:
      -[AppDelegate application:didFinishLaunchingWithOptions:] in AppDelegate.o
  "PTModelGeneralSettings::shared()", referenced from:
      -[GameViewController shouldAutorotateToInterfaceOrientation:] in GameViewController.o
      -[GameViewController supportedInterfaceOrientations] in GameViewController.o
  "PTAdInvoker::rewardedVideoDidEnd(char const*, bool)", referenced from:
      -[AdIntegratorManager rewardedVideoDidEnd:] in AdIntegratorManager.o
  "PTPAppDelegate::~PTPAppDelegate()", referenced from:
      ___cxx_global_var_init.2 in GameViewController.o
  "cocos2d::Director::mainLoop()", referenced from:
      -[GameViewController glkView:drawInRect:] in GameViewController.o
  "PTModelController::shared()", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "PTModelController::loadDataForSplashScreen(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, char const*)", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "cocos2d::Director::setViewport()", referenced from:
      -[GameViewController glkView:drawInRect:] in GameViewController.o
  "cocos2d::GLViewImpl::createWithEAGLView(void*)", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "cocos2d::FileUtils::addSearchPath(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool)", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "PTPAppDelegate::PTPAppDelegate()", referenced from:
      ___cxx_global_var_init.2 in GameViewController.o
  "cocos2d::Application::run()", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "cocos2d::Director::setOpenGLView(cocos2d::GLView*)", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "PTAdInvoker::interstitialClosed(char const*)", referenced from:
      -[AdIntegratorManager interstitialClosed:] in AdIntegratorManager.o
  "cocos2d::Director::startAnimation()", referenced from:
      -[AppDelegate applicationDidBecomeActive:] in AppDelegate.o
  "cocos2d::FileUtils::getInstance()", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
      cocos2d::FileUtils::sharedFileUtils() in GameViewController.o
  "cocos2d::Director::getInstance()", referenced from:
      -[AppDelegate applicationWillResignActive:] in AppDelegate.o
      -[AppDelegate applicationDidBecomeActive:] in AppDelegate.o
      -[GameViewController viewDidLoad] in GameViewController.o
      -[GameViewController glkView:drawInRect:] in GameViewController.o
      -[GameViewController touchesBegan:withEvent:] in GameViewController.o
      -[GameViewController touchesMoved:withEvent:] in GameViewController.o
      -[GameViewController touchesEnded:withEvent:] in GameViewController.o
      ...
  "cocos2d::Application::getInstance()", referenced from:
      -[AppDelegate applicationDidEnterBackground:] in AppDelegate.o
      -[AppDelegate applicationWillEnterForeground:] in AppDelegate.o
      -[GameViewController viewDidLoad] in GameViewController.o
  "PTModelController::clean()", referenced from:
      -[GameViewController viewDidLoad] in GameViewController.o
  "_AOBStopSessionReporting", referenced from:
      -[AppDelegate applicationWillTerminate:] in AppDelegate.o
  "PTBaseModelGeneralSettings::orientation() const", referenced from:
      -[GameViewController shouldAutorotateToInterfaceOrientation:] in GameViewController.o
      -[GameViewController supportedInterfaceOrientations] in GameViewController.o
  "PTAdInvoker::networkLoaded(char const*)", referenced from:
      -[AdIntegratorManager networkLoaded:] in AdIntegratorManager.o
  "cocos2d::Director::stopAnimation()", referenced from:
      -[AppDelegate applicationWillResignActive:] in AppDelegate.o
  "_AOBSendRewardedAdAttemptReport", referenced from:
      -[AdIntegratorManager rewardedVideoImpression:] in AdIntegratorManager.o
      -[AdIntegratorManager rewardedVideoFailed:] in AdIntegratorManager.o
  "_AOBSendBannerAdAttemptReport", referenced from:
      -[AdIntegratorManager bannerImpression:] in AdIntegratorManager.o
      -[AdIntegratorManager bannerFailed:] in AdIntegratorManager.o
  "PTAdInvoker::shared()", referenced from:
      -[AdIntegratorManager networkLoaded:] in AdIntegratorManager.o
      -[AdIntegratorManager networkFailed:] in AdIntegratorManager.o
      -[AdIntegratorManager bannerLoaded:] in AdIntegratorManager.o
      -[AdIntegratorManager bannerFailed:] in AdIntegratorManager.o
      -[AdIntegratorManager interstitialLoaded:] in AdIntegratorManager.o
      -[AdIntegratorManager interstitialFailed:] in AdIntegratorManager.o
      -[AdIntegratorManager interstitialClosed:] in AdIntegratorManager.o
      ...
  "_OBJC_CLASS_$_AdIntegratorInterface", referenced from:
      objc-class-ref in CustomAdIntegrator.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

以及其中一些错误消息:

Undefined symbol: PTAdInvoker::rewardedVideoDidReward(char const*, bool)

Undefined symbol: PTAdInvoker::interstitialFailed(char const*)

Undefined symbol: PTAdInvoker::interstitialLoaded(char const*)

Undefined symbol: PTAdInvoker::rewardedVideoFailed(char const*)

Undefined symbol: PTAdInvoker::bannerFailed(char const*)

Undefined symbol: PTAdInvoker::bannerFailed(char const*)

Undefined symbol: PTAdInvoker::rewardedVideoLoaded(char const*)

Undefined symbol: PTAdInvoker::networkFailed(char const*)

经过长时间的搜索，我找到了使用以下方法的解决方案

*

project >> Build setting >> Apple clang - Language - C++ >> Change C++ Standard Library to libstdc++ (GNY C++ Standard Library )

*

它可以正常工作，但以上所有错误均已消失....
我收到新的以下错误:在此代码上

#include <stack>            'stack' file not found
#include <thread>
#include <chrono>

下的错误“词法或预处理器问题”
在 CCDirector.h上

当我删除“#include stack”行时，出现新错误:

 'thread' file not found

等等.....

因此，我认为此解决方案对我无效
或者我可以解决找不到的 '堆栈'文件吗？

谢谢你的帮助。

Answer 1

我知道已经很久了，但是无论如何，
这个解决方案>>>

project >> Build setting >> Apple clang - Language - C++ >> Change C++Standard Library to libstdc++ (GNY C++ Standard Library )

将导致注意
从一开始的问题是，该项目中有一些库和SDK不支持Xcode模拟器(我已要求SDK所有者对此提供支持)
当我构建了我的应用并在真实设备上对其进行测试后，一切正常。
这就是我的情况，如果您在构建项目时遇到此问题而不是在模拟器上运行它时，请尝试上述解决方案或查看这篇文章
Xcode build failure "Undefined symbols for architecture x86_64"