Parcel Unmarshalling unknown type code

Question

We are getting this error in the Crash reports logged by play store. Cant replicate this in all our testing. Does anyone else have the same problem or solution ? Thing is, we dont even know what to do to replicate this bug.

All Parcelable objects have CREATOR, writeToParcel() and contructor defined. All Lists and complex types are initialised and null checked.

java.lang.RuntimeException: Unable to start activity ComponentInfo{au.com.company/au.com.company.DetailsActivity}: java.lang.RuntimeException: Parcel android.os.Parcel@42d6e270: Unmarshalling unknown type code 6881381 at offset 11268
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2247)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2297)
at android.app.ActivityThread.access$700(ActivityThread.java:152)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5328)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@42d6e270: Unmarshalling unknown type code 6881381 at offset 11268
at android.os.Parcel.readValue(Parcel.java:2032)
at android.os.Parcel.readMapInternal(Parcel.java:2225)
at android.os.Bundle.unparcel(Bundle.java:223)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1240)
at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:861)
at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1104)
at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1086)
at android.support.v4.app.FragmentManagerImpl.dispatchCreate(SourceFile:1872)
at android.support.v4.app.FragmentActivity.onCreate(SourceFile:215)
at android.support.v7.app.ActionBarActivity.onCreate(SourceFile:97)
at au.com.company.DetailsActivity.onCreate(SourceFile:40)
at android.app.Activity.performCreate(Activity.java:5250)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
... 11 more

Answer 1

Check the order of your read and write in your Parcelable classes and respective sub-classes.

The order in which you writeToParcel should be the same order as you read within your MyParcelable(Parcel in) method.