java.lang.RuntimeException: Unable to start activity ComponentInfo{com.entitcs.office_attendance/com.entitcs.office_attendance.activities.ShowLandmarks}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.substring(int, int)' on a null object reference
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3729)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3896)
	at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
	at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:140)
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:100)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2326)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loop(Looper.java:263)
	at android.app.ActivityThread.main(ActivityThread.java:8296)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:612)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1006)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.substring(int, int)' on a null object reference
	at com.entitcs.office_attendance.activities.ShowLandmarks.onCreate(Unknown Source:62)
	at android.app.Activity.performCreate(Activity.java:8153)
	at android.app.Activity.performCreate(Activity.java:8137)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1310)
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3698)
	... 11 more