AdMob的崩溃与[GADObjectPrivate改变状态：]：无法识别选择 [英] AdMob crashes with [GADObjectPrivate changeState:]: unrecognized selector

问题描述

我已经安装了AdMob的SDK 6.2.0（X code ++ 4.5（4G182）和我正在测试的iPhone 4S和仿真器）。我跟着教程，只是想获得AdMob的一次展示的一面旗帜。但它崩溃的最后一行：

I have installed the AdMob SDK 6.2.0 (Xcode 4.5 (4G182) and I am testing on an iPhone 4S and the simulator). I followed the tutorial and just want to get AdMob showing a banner once. But it crashes on the last line:

self.bannerView = [[GADBannerView alloc]
               initWithFrame:CGRectMake(0.0,
                                        self.view.frame.size.height -
                                        GAD_SIZE_320x50.height,
                                        GAD_SIZE_320x50.width,
                                        GAD_SIZE_320x50.height)];

self.bannerView.delegate = self;
self.bannerView.adUnitID = @"xREMOVEDBYMEx";
self.bannerView.rootViewController = self;
[self.view addSubview:self.bannerView];
GADRequest * request = [GADRequest request];
request.testing = YES;
[self.bannerView loadRequest:request];

崩溃是

2012-09-28 09：03：58.268 NewProject [1467：C07] - [GADObjectPrivate改变状态：]：无法识别的选择发送到实例0x95c17d0   2012-09-28 09：03：58.276 NewProject [1467：C07]的 * 的终止应用程序由于未捕获的异常NSInvalidArgumentException，原因是：' - [GADObjectPrivate改变状态：]：无法识别的选择发送到实例0x95c17d0

2012-09-28 09:03:58.268 NewProject[1467:c07] -[GADObjectPrivate changeState:]: unrecognized selector sent to instance 0x95c17d0 2012-09-28 09:03:58.276 NewProject[1467:c07] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[GADObjectPrivate changeState:]: unrecognized selector sent to instance 0x95c17d0'

这看起来像在图书馆给我的错误，但我认为是不太可能。有什么想法？

This looks like a bug in the library to me but I think thats very unlikely. Any thoughts?

编辑：在本例中的项目完全相同的code ++工程。有什么我可以做的不对我的项目文件，会导致该错误？

The exact same code works in the example projects. Is there something I can do wrong with my project file that would result in that error?

推荐答案

您需要添加 -ObjC 到其它链接器标记的你应用目标的构建设置：

You need to add -ObjC to the Other Linker Flags of your application target's build setting:

1. 单击在X code中的蓝色的顶级项目图标
2. 选择您的目标，去的构建设置的
3. 在其它链接器标记的补充 -ObjC 为的发布和调试的

1. Click the blue top-level project icon in XCode
2. Choose your target and go to Build Settings
3. Under Other Linker Flags add -ObjC for both Release and Debug

来源：<一href="https://developers.google.com/mobile-ads-sdk/docs/admob/mediation#ios-linker">https://developers.google.com/mobile-ads-sdk/docs/admob/mediation#ios-linker

另外，一定做一个干净和重建

Also be sure to do a clean and rebuild

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