Can't put a view with parent inside an another view

We found this prefix in 378 webpages.
MapChildren (4)Typical messages (74)TraceDetailed Map
  1. java.lang.IllegalStateException
    1.   at android.view.ViewGroup.addViewInner()
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  1. IllegalStateException

    Crashes:384
    Projects:0
    Web Pages:375
    Error Reports:0
    First:10 months ago
    Last:8 months ago
    preview
  2. How do I handle back button press in a Fragment in mid-transition?

    First:3 years ago
    Last:3 years ago
    Author:Nilzor
  3. Android Fragment API 26 " The specified child already has a parent. You must call removeView() on the child's parent first."

    First:10 months ago
    Last:10 months ago
    Author:justdan0227
  4. PageAdapter + VerticalViewPager NOT working Together. Why?

    First:11 months ago
    Last:11 months ago
    Author:user2522885
MessageNumber of crashes
The specified child already has a parent. You must call removeView() on the child's parent first.299
Unable to start activity ComponentInfo{com.example.test/com.example.test.Highscores}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.2
Unable to start activity ComponentInfo{com.example.androidtablayout/com.example.androidtablayout.SongsActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.2
**The specified child already has a parent. You must call removeView() on the child's parent first.**2
Could not execute method of the activity2
The specified child already has a parent. You must call removeView() on the child's parent first.2
The specified child already has a parent. You must call removeView() on the childs parent first.2
Unable to start activity ComponentInfo{com.example.teerna.smartagriculturev5/com.example.teerna.smartagriculturev5.MainActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent fi1
Unable to start activity ComponentInfo{com.splash.bookguk_project/category_viewbook_sub2_1.Dynamic_rb_Activity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.1
Unable to start activity ComponentInfo{net.mkg20001.zeronet/org.kivy.android.PythonActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.1
  1. java.lang.IllegalStateException
    1.   at android.view.ViewGroup.addViewInner()
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