java.lang.RuntimeException: Fail to connect to camera service at android.hardware.Camera.(Camera.java:581) at android.hardware.Camera.open(Camera.java:399) at n8.a.j(Unknown Source:32) at n8.a.d(Unknown Source:9) at com.entitcs.office_attendance.camera.CameraSourcePreview.f(Unknown Source:29) at com.entitcs.office_attendance.camera.CameraSourcePreview.onLayout(Unknown Source:28) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1842) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1686) at android.widget.LinearLayout.onLayout(LinearLayout.java:1595) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1842) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1686) at android.widget.LinearLayout.onLayout(LinearLayout.java:1595) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1842) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1686) at android.widget.LinearLayout.onLayout(LinearLayout.java:1595) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at com.android.internal.policy.DecorView.onLayout(DecorView.java:902) at android.view.View.layout(View.java:20948) at android.view.ViewGroup.layout(ViewGroup.java:6279) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3037) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2545) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1636) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7946) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1092) at android.view.Choreographer.doCallbacks(Choreographer.java:893) at android.view.Choreographer.doFrame(Choreographer.java:812) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1078) at android.os.Handler.handleCallback(Handler.java:907) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:216) at android.app.ActivityThread.main(ActivityThread.java:7625) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)