所以我有一个根组件和两个子组件。我尝试让一个子组件调用根组件中的一个方法,并更新根组件中的状态,并将更新后的状态传递给另一个组件,但是我得到了以下错误。warning.js?8a56:36 Warning: setState(...): Can only update a mounted or mounting component. This usually means you called setState() on an unmounted component. This is a no-op. Please check the code for the firstChi