couldn't get cmd pointer (substituting NULL): extracting data from value failed Couldn't materialize

今天再調試程序的時候 po 一個變量出現這個錯誤   couldn't get cmd pointer (substituting NULL): extracting data from value failed Couldn't materialize 其他的可以進行 網上查了一下 說是工程編譯的目標類型是release 應該是debug  解決方法很簡單 ： product－－scheme －

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