Crash report - Design assumption violated.(ver2.1.4)

[fire-bot]

Sent by Darren Fox (dazijfox@gmail.com). Created by fire.

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java.lang.IllegalStateException: Design assumption violated.
at androidx.viewpager2.adapter.FragmentStateAdapter.placeFragmentInViewHolder(FragmentStateAdapter.java:295)
at androidx.viewpager2.adapter.FragmentStateAdapter.onViewAttachedToWindow(FragmentStateAdapter.java:284)
at androidx.viewpager2.adapter.FragmentStateAdapter.onViewAttachedToWindow(FragmentStateAdapter.java:72)
at androidx.recyclerview.widget.RecyclerView.dispatchChildAttached(RecyclerView.java:7867)
at androidx.recyclerview.widget.RecyclerView$5.addView(RecyclerView.java:893)
at androidx.recyclerview.widget.ChildHelper.addView(ChildHelper.java:107)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addViewInt(RecyclerView.java:8902)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8860)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8848)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1645)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1591)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:668)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4309)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:4012)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4578)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at androidx.viewpager2.widget.ViewPager2.onLayout(ViewPager2.java:526)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at androidx.drawerlayout.widget.DrawerLayout.onLayout(DrawerLayout.java:1231)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at androidx.appcompat.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:530)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1829)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1673)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1582)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:332)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:789)
at android.view.View.layout(View.java:22958)
at android.view.ViewGroup.layout(ViewGroup.java:6433)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3541)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3009)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2023)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8314)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:972)
at android.view.Choreographer.doCallbacks(Choreographer.java:796)
at android.view.Choreographer.doFrame(Choreographer.java:731)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:957)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7945)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:603)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
OS version: 30
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