java.lang.RuntimeException: getParameters failed (empty parameters)

[Piashsarker]

FATAL EXCEPTION: ControllerMessenger
Process: com.nextinnovation.pt.barcodescanner, PID: 6871
java.lang.RuntimeException: getParameters failed (empty parameters)
	at android.hardware.Camera.native_getParameters(Native Method)
	at android.hardware.Camera.getParameters(Camera.java:1910)
	at com.edwardvanraak.materialbarcodescanner.CameraSource.setFlashMode(CameraSource.java:556)
	at com.edwardvanraak.materialbarcodescanner.MaterialBarcodeScannerActivity.enableTorch(MaterialBarcodeScannerActivity.java:176)
	at com.edwardvanraak.materialbarcodescanner.MaterialBarcodeScannerActivity.access$300(MaterialBarcodeScannerActivity.java:28)
	at com.edwardvanraak.materialbarcodescanner.MaterialBarcodeScannerActivity$2.onClick(MaterialBarcodeScannerActivity.java:115)
	at android.view.View.performClick(View.java:6219)
	at android.view.View$PerformClick.run(View.java:24482)
	at android.os.Handler.handleCallback(Handler.java:769)
	at android.os.Handler.dispatchMessage(Handler.java:98)
	at android.support.test.espresso.base.Interrogator.loopAndInterrogate(Interrogator.java:148)
	at android.support.test.espresso.base.UiControllerImpl.loopUntil(UiControllerImpl.java:466)
	at android.support.test.espresso.base.UiControllerImpl.loopUntil(UiControllerImpl.java:420)
	at android.support.test.espresso.base.UiControllerImpl.injectMotionEvent(UiControllerImpl.java:234)
	at android.support.test.espresso.action.MotionEvents.sendUp(MotionEvents.java:140)
	at android.support.test.espresso.action.MotionEvents.sendUp(MotionEvents.java:123)
	at android.support.test.espresso.action.Tap.sendSingleTap(Tap.java:170)
	at android.support.test.espresso.action.Tap.access$100(Tap.java:31)
	at android.support.test.espresso.action.Tap$1.sendTap(Tap.java:46)
	at android.support.test.espresso.action.GeneralClickAction.perform(GeneralClickAction.java:136)
	at android.support.test.espresso.ViewInteraction$SingleExecutionViewAction.perform(ViewInteraction.java:355)
	at android.support.test.espresso.ViewInteraction.doPerform(ViewInteraction.java:242)
	at android.support.test.espresso.ViewInteraction.access$100(ViewInteraction.java:62)
	at android.support.test.espresso.ViewInteraction$1.call(ViewInteraction.java:149)
	at android.support.test.espresso.ViewInteraction$1.call(ViewInteraction.java:146)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at android.os.Handler.handleCallback(Handler.java:769)
	at android.os.Handler.dispatchMessage(Handler.java:98)
	at android.os.Looper.loop(Looper.java:164)
	at android.app.ActivityThread.main(ActivityThread.java:6541)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)