BadParcelableException:ClassNotFoundException when unmarshalling: android.support.v4.app.FragmentManagerState

Question

I\'ve migrated to SDK Android 27.1.0 3 days ago, and there are some crashs like this one, I can\'t understand why. It appears (currently) on Android 8 and 6.

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Answer 1

@XJIOP said is correct i also have same issue on my production, but i was unable to find what the crash, i followed @XJIOP path and produce the bug,i resolved the bug by updating the compact version from

appcompat 27.1.0 to 27.1.1

since i am using proguard i also added the following line to my proguard

add the following line to proguard if you are using proguard on your production build else ignore

-keepnames class * implements android.os.Parcelable {
    public static final ** CREATOR;
}

After adding the pro guard line and updating the compact lib i was able to fix the issue and the bug hasent reported yet on my updated production build. hope this will help some others