命令因信号而失败:中止陷阱:6 [英] Command failed due to signal: Abort trap: 6

问题描述

从 Xcode 7 和 Swift 2.0 开始，我收到了上面的错误，就像这里显示的屏幕截图:

Since Xcode 7 and Swift 2.0, I get the error above, like in the screenshot shown here:

我不知道这是从哪里来的，清理和删除派生数据不起作用.

I have no idea where this is coming from, cleaning and deleting derived data didn't work.

还有其他人遇到过这个问题吗?

Anyone else experiencing this problem?

项目设置:

目标设置:

推荐答案

我在保护构造中使用相同的常量名称时遇到了这个问题

I faced this issue when used the same constant names in a guard construction

let activityVC = ...
        
guard let activityVC = activityVC else { return }

但是 xcode 没有向我显示这一行的任何警告.

But xcode didn't show me any warning for this row.

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