java.lang.NullPointerException: GoogleApiClient must not be null at d7.r.l(Unknown Source:9) at com.google.android.gms.common.api.internal.b.(Unknown Source:2) at c8.f$a.(Unknown Source:2) at w7.d0.(Unknown Source:5) at w7.c0.a(Unknown Source:3) at com.entitcs.office_attendance.CRM.CRM_Add_Customer$z.onClick(Unknown Source:60) at android.view.View.performClick(View.java:7509) at android.view.View.performClickInternal(View.java:7486) at android.view.View.access$3600(View.java:841) at android.view.View$PerformClick.run(View.java:28720) at android.os.Handler.handleCallback(Handler.java:938) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:236) at android.app.ActivityThread.main(ActivityThread.java:8059) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:656) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)