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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Crash on app resume: The specified child already has a parent.","articleBody":"Not sure if related to #6199 (not using tabs), but I am having a serious issue where the app crashes after it comes back from being in the background: `The specified child already has a parent. You must call removeView() on the child's parent first.`\r\n\r\nThe full exception is below.\r\n```\r\nSystem.err: java.lang.RuntimeException: Unable to resume activity {com.abhayastudios.myapp/com.tns.NativeScriptActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.\r\nSystem.err:   at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3788)\r\nSystem.err:   at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3828)\r\nSystem.err:   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1746)\r\nSystem.err:   at android.os.Handler.dispatchMessage(Handler.java:105)\r\nSystem.err:   at android.os.Looper.loop(Looper.java:164)\r\nSystem.err:   at android.app.ActivityThread.main(ActivityThread.java:6938)\r\nSystem.err:   at java.lang.reflect.Method.invoke(Native Method)\r\nSystem.err:   at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)\r\nSystem.err:   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)\r\nSystem.err: Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.\r\nSystem.err:   at android.view.ViewGroup.addViewInner(ViewGroup.java:5122)\r\nSystem.err:   at android.view.ViewGroup.addView(ViewGroup.java:4953)\r\nSystem.err:   at android.view.ViewGroup.addView(ViewGroup.java:4893)\r\nSystem.err:   at android.view.ViewGroup.addView(ViewGroup.java:4866)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1425)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1750)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1819)\r\nSystem.err:   at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:797)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2590)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2377)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2332)\r\nSystem.err:   at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2239)\r\nSystem.err:   at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:379)\r\nSystem.err:   at android.support.v4.app.FragmentActivity.onResume(FragmentActivity.java:461)\r\nSystem.err:   at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1361)\r\nSystem.err:   at android.app.Activity.performResume(Activity.java:7353)\r\nSystem.err:   at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3763)\r\nSystem.err:   ... 8 more\r\n```\r\n\r\n### Which platform(s) does your issue occur on?\r\nAndroid\r\n\r\n### Please provide the following version numbers that your issue occurs with:\r\n- CLI: `4.2`\r\n- Cross-platform modules: `4.3.0-2018-08-17-04`\r\n- Runtime(s): `4.2`\r\n- Plugin(s): (look for the version number in the `package.json` file of your\r\nproject)\r\n\r\n### Please tell us how to recreate the issue in as much detail as possible.\r\n\r\n\r\n### Is there code involved? If so, please share the minimal amount of code needed to recreate the problem.\r\n\r\n\r\n\r\n","author":{"url":"https://github.com/abhayastudios","@type":"Person","name":"abhayastudios"},"datePublished":"2018-08-20T23:07:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":16},"url":"https://github.com/6201/NativeScript/issues/6201"}