Xcode调试器不会在watchOS应用中的断点处停止

Question

我在applicationDidBecomeActive类的WKExtensionDelegate方法中设置了一个断点。

WatchExtensionDelegate.h

@interface WatchExtensionDelegate : NSObject<WKExtensionDelegate>
@end

WatchExtensionDelegate.m

@implementation WatchExtensionDelegate

- (void)applicationDidBecomeActive {
    [self refreshView]; // Breakpoint
    [self refreshData];
}

...

@end

断点截屏

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该应用程序可正常运行。但是调试器不会停止。我使用Xcode 9.4.1