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Xcode9 beta3运行项目崩溃，如下： 真机为iOS 11 beta2换成iOS8运行无误，换成iOS 11 beta3运行也正常，哈哈哈...
1.iOS < 10 2）跳转NSURL *url = [NSURL URLWithString:@"prefs:root=WIFI"];if ...
dyld: Library not loaded: /System/Library/Frameworks/Contacts.framework/...
安装或更新cocoapods时报错： [!] Your Podfile has had smart quotes sanitised. To a...
项目添加cocoapods时报错： The dependency MBProgressHUD (~> 0.9.2) is not used in...