Fatal Exception: java.lang.NullPointerException Attempt to read from null array

[akhilchakka-upl]

Fatal Exception: java.lang.NullPointerException Attempt to read from null array com.github.mikephil.charting.renderer.BarChartRenderer.drawDataSet (BarChartRenderer.java:138) com.github.mikephil.charting.renderer.BarChartRenderer.drawData (BarChartRenderer.java:82) com.github.mikephil.charting.renderer.CombinedChartRenderer.drawData (CombinedChartRenderer.java:89) com.github.mikephil.charting.charts.BarLineChartBase.onDraw (BarLineChartBase.java:237) android.view.View.draw (View.java:20207) android.view.View.updateDisplayListIfDirty (View.java:19082) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.draw (View.java:20210) android.view.View.updateDisplayListIfDirty (View.java:19082) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.updateDisplayListIfDirty (View.java:19073) android.view.View.draw (View.java:19935) android.view.ViewGroup.drawChild (ViewGroup.java:4333) android.view.ViewGroup.dispatchDraw (ViewGroup.java:4112) android.view.View.draw (View.java:20210) com.android.internal.policy.DecorView.draw (DecorView.java:780) android.view.View.updateDisplayListIfDirty (View.java:19082) android.view.ThreadedRenderer.updateViewTreeDisplayList (ThreadedRenderer.java:686) android.view.ThreadedRenderer.updateRootDisplayList (ThreadedRenderer.java:692) android.view.ThreadedRenderer.draw (ThreadedRenderer.java:801) android.view.ViewRootImpl.draw (ViewRootImpl.java:3321) android.view.ViewRootImpl.performDraw (ViewRootImpl.java:3125) android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2484) android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1461) android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:7193) android.view.Choreographer$CallbackRecord.run (Choreographer.java:949) android.view.Choreographer.doCallbacks (Choreographer.java:761) android.view.Choreographer.doFrame (Choreographer.java:696) android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:935) android.os.Handler.handleCallback (Handler.java:873) android.os.Handler.dispatchMessage (Handler.java:99) android.os.Looper.loop (Looper.java:193) android.app.ActivityThread.main (ActivityThread.java:6680) java.lang.reflect.Method.invoke (Method.java) com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493) com.android.internal.os.ZygoteInit.main (ZygoteInit.java:858)