java.lang.NullPointerException

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    • java.lang.NullPointerException: println needs a message at android.util.Log.println_native(Native Method) at android.util.Log.d(Log.java:139) at com.tradesomev4.tradesomev4.MainActivity.getAllAuctionData(MainActivity.java:136) at com.tradesomev4.tradesomev4.MainActivity.access$100(MainActivity.java:66) at com.tradesomev4.tradesomev4.MainActivity$2.onChildAdded(MainActivity.java:158) at com.google.android.gms.internal.zzahh.zza(Unknown Source) at com.google.android.gms.internal.zzajh.zzctc(Unknown Source) at com.google.android.gms.internal.zzajk$1.run(Unknown Source) at android.os.Handler.handleCallback(Handler.java:815) at android.os.Handler.dispatchMessage(Handler.java:104) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5637) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

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