xcode error: cannot create __weak reference in file using manual reference counting

在接入cocospod导入facebook库的时候 编译错误FBSDKInternalUtility提示错误指向方法

- (void)unregisterTransientObject:(__weak id)object;

error: cannot create __weak reference in file using manual reference counting

解决方法:

打开项目工程文件 - TARGETS —Build Settings —在下方搜索框搜索weak -——在Apple Clang - Language - Objective-C选项下边 —将Weak Reference in Manual Retain Release选项从NO改为YES,如下图:

xcode error: cannot create __weak reference in file using manual reference counting_第1张图片

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