java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.File.exists()' on a null object reference
        at com.gpl.rpg.AndorsTrail.util.AndroidStorage.shouldMigrateToInternalStorage(AndroidStorage.java:37)
        at com.gpl.rpg.AndorsTrail.activity.fragment.StartScreenActivity_MainMenu.migrateDataOnDemand(StartScreenActivity_MainMenu.java:206)
        at com.gpl.rpg.AndorsTrail.activity.fragment.StartScreenActivity_MainMenu.onCreateView(StartScreenActivity_MainMenu.java:153)
        at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
        at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
        at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738)
        at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
        at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:339)
        at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:602)
        at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1436)
        at android.app.Activity.performStart(Activity.java:8140)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3505)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2104)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:236)
        at android.app.ActivityThread.main(ActivityThread.java:7861)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:600)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)