Fatal Exception: org.a.a.e: Subscriber class com.edwardvanraak.materialbarcodescanner.b and its super classes have no public methods with the @Subscribe annotation

[Piashsarker]

Fatal Exception: org.a.a.e: Subscriber class com.edwardvanraak.materialbarcodescanner.b and its super classes have no public methods with the @subscribe annotation
at org.greenrobot.eventbus.SubscriberMethodFinder.findSubscriberMethods(Unknown Source)
at org.greenrobot.eventbus.EventBus.getDefault(Unknown Source)
at com.edwardvanraak.materialbarcodescanner.MaterialBarcodeScanner.setOnResultListener(Unknown Source)
at com.nextinnovation.pt.barcodescanner.activity.MainActivity.startScanningBarcode(Unknown Source)
at com.nextinnovation.pt.barcodescanner.activity.MainActivity.checkPermission(Unknown Source)
at com.nextinnovation.pt.barcodescanner.activity.MainActivity.scanBarcode(Unknown Source)
at com.nextinnovation.pt.barcodescanner.fragment.BarcodeFragment.onClick(Unknown Source)
at android.view.View.performClick(View.java:4463)
at android.view.View$PerformClick.run(View.java:18770)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5333)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
at dalvik.system.NativeStart.main(NativeStart.java)