The specified child already has a parent. You must call removeView() on the child's parent first.

[ziga-hvalec]

We're getting this error occasionally java.lang.IllegalStateException - The specified child already has a parent. You must call removeView() on the child's parent first. Nav sdk 0.6.1 on android only

 Fatal Exception: com.google.android.libraries.navigation.internal.mq.b: ab{property=ab{propertyType=ARROW_PAGER_ITEMS, layout=com.google.android.libraries.navigation.internal.tx.k, view=com.google.android.libraries.geo.navcore.ui.header.views.SwipeableHeaderView{bef9379 V.E...... ......ID 0,0-720,278 #7f0902fe app:id/step_cue_header viewInfo = }, propertyValue=[com.google.android.libraries.navigation.internal.ts.a@c86d8be, com.google.android.libraries.navigation.internal.ts.a@c685d1f, com.google.android.libraries.navigation.internal.ts.a@9c9486c, com.google.android.libraries.navigation.internal.ts.a@e4cee35, com.google.android.libraries.navigation.internal.ts.a@953c2ca]}, viewModel=com.google.android.libraries.navigation.internal.ts.d@357b6ac}
       at android.view.ViewGroup.addViewInner(ViewGroup.java:5380)
       at android.view.ViewGroup.addView(ViewGroup.java:5201)
       at androidx.viewpager.widget.ViewPager.addView(ViewPager.java:1485)
       at android.view.ViewGroup.addView(ViewGroup.java:5136)
       at android.view.ViewGroup.addView(ViewGroup.java:5108)
       at com.google.android.libraries.navigation.internal.mo.b.instantiateItem(PG:7)
       at com.google.android.apps.gmm.base.views.viewpager.j.instantiateItem(PG:1)
       at androidx.viewpager.widget.ViewPager.addNewItem(ViewPager.java:1010)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1158)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:669)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:631)
       at androidx.viewpager.widget.ViewPager.dataSetChanged(ViewPager.java:1086)
       at androidx.viewpager.widget.ViewPager$PagerObserver.onChanged(ViewPager.java:3097)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:291)
       at com.google.android.apps.gmm.base.views.viewpager.j.c(PG:6)
       at com.google.android.apps.gmm.base.views.viewpager.i.onChanged(PG:2)
       at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:294)
       at com.google.android.libraries.navigation.internal.mo.b.b(PG:3)
       at com.google.android.apps.gmm.base.views.viewpager.g.a(PG:9)
       at com.google.android.libraries.navigation.internal.ms.a.g(PG:4)
       at com.google.android.libraries.navigation.internal.ms.c.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.bd.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:10)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.q(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.m(PG:1)
       at com.google.android.libraries.navigation.internal.mn.cs.a(PG:6)
       at com.google.android.libraries.navigation.internal.mn.aj.invoke(:2)
       at com.google.android.libraries.navigation.internal.mn.am.a(PG:2)
       at com.google.android.libraries.navigation.internal.vm.cs.run(PG:1)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
       at com.google.android.libraries.navigation.internal.if.b.run(PG:2)
       at android.os.Handler.handleCallback(Handler.java:958)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loopOnce(Looper.java:257)
       at android.os.Looper.loop(Looper.java:368)
       at android.app.ActivityThread.main(ActivityThread.java:8839)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:572)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)
        

          Caused by java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
       at android.view.ViewGroup.addViewInner(ViewGroup.java:5380)
       at android.view.ViewGroup.addView(ViewGroup.java:5201)
       at androidx.viewpager.widget.ViewPager.addView(ViewPager.java:1485)
       at android.view.ViewGroup.addView(ViewGroup.java:5136)
       at android.view.ViewGroup.addView(ViewGroup.java:5108)
       at com.google.android.libraries.navigation.internal.mo.b.instantiateItem(PG:7)
       at com.google.android.apps.gmm.base.views.viewpager.j.instantiateItem(PG:1)
       at androidx.viewpager.widget.ViewPager.addNewItem(ViewPager.java:1010)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1158)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:669)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:631)
       at androidx.viewpager.widget.ViewPager.dataSetChanged(ViewPager.java:1086)
       at androidx.viewpager.widget.ViewPager$PagerObserver.onChanged(ViewPager.java:3097)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:291)
       at com.google.android.apps.gmm.base.views.viewpager.j.c(PG:6)
       at com.google.android.apps.gmm.base.views.viewpager.i.onChanged(PG:2)
       at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:294)
       at com.google.android.libraries.navigation.internal.mo.b.b(PG:3)
       at com.google.android.apps.gmm.base.views.viewpager.g.a(PG:9)
       at com.google.android.libraries.navigation.internal.ms.a.g(PG:4)
       at com.google.android.libraries.navigation.internal.ms.c.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.bd.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:10)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.q(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.m(PG:1)
       at com.google.android.libraries.navigation.internal.mn.cs.a(PG:6)
       at com.google.android.libraries.navigation.internal.mn.aj.invoke(:2)
       at com.google.android.libraries.navigation.internal.mn.am.a(PG:2)
       at com.google.android.libraries.navigation.internal.vm.cs.run(PG:1)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
       at com.google.android.libraries.navigation.internal.if.b.run(PG:2)
       at android.os.Handler.handleCallback(Handler.java:958)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loopOnce(Looper.java:257)
       at android.os.Looper.loop(Looper.java:368)
       at android.app.ActivityThread.main(ActivityThread.java:8839)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:572)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)
        

[caio1985]

Ack! @illuminati1911 can you please take a look into this? @jokerttu FYI.

[illuminati1911]

@ziga-hvalec Thansk for reporting this!

Could you give use more detailed information about the issue?

1. Do you get it completely randomly or does it happen in some specific situation?
2. Are you getting this crash on Android emulator or real device?
3. Which Android version are you using?

Also feel free to share any other information you think might be relevant.

[ziga-hvalec]

1. I only saw this in crashlytics. Wasn't able to reproduce this.
2. It is on a real android device.
3. crashlytics says
   63% Android 14
   19% Android 12
   9% Android 13
   6% Android 10
   3% Other (1)

also doesn't seem to be device specific
47% Samsung
19% Oppo
9% Motorola
9% Vivo
16% Other (3)

[jokerttu]

I’ve marked this as the highest priority. We need to find a way to reproduce the issue in order to identify a fix. This is an internal exception within the navigation SDK, but it’s most likely related to how views are initialized in the React Native package implementation.

[sr1k3sh]

We're getting this error occasionally java.lang.IllegalStateException - The specified child already has a parent. You must call removeView() on the child's parent first. Nav sdk 0.6.1 on android only

 Fatal Exception: com.google.android.libraries.navigation.internal.mq.b: ab{property=ab{propertyType=ARROW_PAGER_ITEMS, layout=com.google.android.libraries.navigation.internal.tx.k, view=com.google.android.libraries.geo.navcore.ui.header.views.SwipeableHeaderView{bef9379 V.E...... ......ID 0,0-720,278 #7f0902fe app:id/step_cue_header viewInfo = }, propertyValue=[com.google.android.libraries.navigation.internal.ts.a@c86d8be, com.google.android.libraries.navigation.internal.ts.a@c685d1f, com.google.android.libraries.navigation.internal.ts.a@9c9486c, com.google.android.libraries.navigation.internal.ts.a@e4cee35, com.google.android.libraries.navigation.internal.ts.a@953c2ca]}, viewModel=com.google.android.libraries.navigation.internal.ts.d@357b6ac}
       at android.view.ViewGroup.addViewInner(ViewGroup.java:5380)
       at android.view.ViewGroup.addView(ViewGroup.java:5201)
       at androidx.viewpager.widget.ViewPager.addView(ViewPager.java:1485)
       at android.view.ViewGroup.addView(ViewGroup.java:5136)
       at android.view.ViewGroup.addView(ViewGroup.java:5108)
       at com.google.android.libraries.navigation.internal.mo.b.instantiateItem(PG:7)
       at com.google.android.apps.gmm.base.views.viewpager.j.instantiateItem(PG:1)
       at androidx.viewpager.widget.ViewPager.addNewItem(ViewPager.java:1010)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1158)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:669)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:631)
       at androidx.viewpager.widget.ViewPager.dataSetChanged(ViewPager.java:1086)
       at androidx.viewpager.widget.ViewPager$PagerObserver.onChanged(ViewPager.java:3097)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:291)
       at com.google.android.apps.gmm.base.views.viewpager.j.c(PG:6)
       at com.google.android.apps.gmm.base.views.viewpager.i.onChanged(PG:2)
       at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:294)
       at com.google.android.libraries.navigation.internal.mo.b.b(PG:3)
       at com.google.android.apps.gmm.base.views.viewpager.g.a(PG:9)
       at com.google.android.libraries.navigation.internal.ms.a.g(PG:4)
       at com.google.android.libraries.navigation.internal.ms.c.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.bd.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:10)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.q(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.m(PG:1)
       at com.google.android.libraries.navigation.internal.mn.cs.a(PG:6)
       at com.google.android.libraries.navigation.internal.mn.aj.invoke(:2)
       at com.google.android.libraries.navigation.internal.mn.am.a(PG:2)
       at com.google.android.libraries.navigation.internal.vm.cs.run(PG:1)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
       at com.google.android.libraries.navigation.internal.if.b.run(PG:2)
       at android.os.Handler.handleCallback(Handler.java:958)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loopOnce(Looper.java:257)
       at android.os.Looper.loop(Looper.java:368)
       at android.app.ActivityThread.main(ActivityThread.java:8839)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:572)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)
        

          Caused by java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
       at android.view.ViewGroup.addViewInner(ViewGroup.java:5380)
       at android.view.ViewGroup.addView(ViewGroup.java:5201)
       at androidx.viewpager.widget.ViewPager.addView(ViewPager.java:1485)
       at android.view.ViewGroup.addView(ViewGroup.java:5136)
       at android.view.ViewGroup.addView(ViewGroup.java:5108)
       at com.google.android.libraries.navigation.internal.mo.b.instantiateItem(PG:7)
       at com.google.android.apps.gmm.base.views.viewpager.j.instantiateItem(PG:1)
       at androidx.viewpager.widget.ViewPager.addNewItem(ViewPager.java:1010)
       at androidx.viewpager.widget.ViewPager.populate(ViewPager.java:1158)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:669)
       at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:631)
       at androidx.viewpager.widget.ViewPager.dataSetChanged(ViewPager.java:1086)
       at androidx.viewpager.widget.ViewPager$PagerObserver.onChanged(ViewPager.java:3097)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:291)
       at com.google.android.apps.gmm.base.views.viewpager.j.c(PG:6)
       at com.google.android.apps.gmm.base.views.viewpager.i.onChanged(PG:2)
       at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37)
       at androidx.viewpager.widget.PagerAdapter.notifyDataSetChanged(PagerAdapter.java:294)
       at com.google.android.libraries.navigation.internal.mo.b.b(PG:3)
       at com.google.android.apps.gmm.base.views.viewpager.g.a(PG:9)
       at com.google.android.libraries.navigation.internal.ms.a.g(PG:4)
       at com.google.android.libraries.navigation.internal.ms.c.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.bd.b(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:10)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.s(PG:13)
       at com.google.android.libraries.navigation.internal.mn.cc.r(PG:4)
       at com.google.android.libraries.navigation.internal.mn.cc.q(PG:3)
       at com.google.android.libraries.navigation.internal.mn.cc.m(PG:1)
       at com.google.android.libraries.navigation.internal.mn.cs.a(PG:6)
       at com.google.android.libraries.navigation.internal.mn.aj.invoke(:2)
       at com.google.android.libraries.navigation.internal.mn.am.a(PG:2)
       at com.google.android.libraries.navigation.internal.vm.cs.run(PG:1)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
       at com.google.android.libraries.navigation.internal.if.b.run(PG:2)
       at android.os.Handler.handleCallback(Handler.java:958)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loopOnce(Looper.java:257)
       at android.os.Looper.loop(Looper.java:368)
       at android.app.ActivityThread.main(ActivityThread.java:8839)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:572)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)
        

I'm also facing this issue. for me every time i close the view and reopen, i get mentioned issue Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. ... 46 more

[ziga-hvalec]

Still happening on 0.8.1

[ziga-hvalec]

Has this been fixed. Any update on this?

[jokerttu]

@ziga-hvalec
I haven't been able to re-produce this. Could you please provide minimum example where this happens.

The error mentioned seems related to a view pager. Are you using a pager component? If so, could you specify which package you are using?

[jokerttu]

@sr1k3sh
Same question for you, what view pager component you are using, could you provide example of the page hierarchy where this issue is visible.

[ziga-hvalec]

I'm not using any pager component. I do have react-native-pager-view installed because it's required by some other dependency, can't remember which tho.

"react-native-pager-view": "6.3.3",