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java.lang.NullPointerException: 	at android.support.v4.a.a.a(Unknown Source)	at es.esy.kkaun.procrastinant.c.a(Unknown Source)	at com.google.android.gms.common.internal.r.a(Unknown Source)	at com.google.android.gms.c.x.a(Unknown Source)	at com.google.android.gms.c.v.g(Unknown Source)	at com.google.android.gms.c.v.a(Unknown Source)	at com.google.android.gms.c.z.a(Unknown Source)	at com.google.android.gms.c.r.a(Unknown Source)	at com.google.android.gms.common.internal.q$1.a(Unknown Source)	at com.google.android.gms.common.internal.j$j.a(Unknown Source)	at com.google.android.gms.common.internal.j$a.a(Unknown Source)	at com.google.android.gms.common.internal.j$a.a(Unknown Source)	at com.google.android.gms.common.internal.j$e.c(Unknown Source)	at com.google.android.gms.common.internal.j$d.handleMessage(Unknown Source)	at android.os.Handler.dispatchMessage(Handler.java:99)	at android.os.Looper.loop(Looper.java:154)	at android.app.ActivityThread.main(ActivityThread.java:4624)	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(Method.java:511)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)	at dalvik.system.NativeStart.main(Native Method)