1 問題

Fatal Exception: java.lang.RuntimeException: All children of ConstraintLayout must have ids to use ConstraintSetat androidx.constraintlayout.widget.ConstraintSet.readFallback(ConstraintSet.java:459)at androidx.constraintlayout.motion.widget.MotionScene.readFallback(MotionScene.java:1481)at androidx.constraintlayout.motion.widget.MotionLayout.onAttachedToWindow(MotionLayout.java:3473)at android.view.View.dispatchAttachedToWindow(View.java:17393)at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3322)at android.view.ViewGroup.addViewInner(ViewGroup.java:4959)at android.view.ViewGroup.addView(ViewGroup.java:4750)at androidx.fragment.app.FragmentContainerView.addView(FragmentContainerView.java:280)at android.view.ViewGroup.addView(ViewGroup.java:4690)at android.view.ViewGroup.addView(ViewGroup.java:4663)at androidx.fragment.app.FragmentStateManager.createView(Fra

總結

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