java.lang.RuntimeException: Unable to start activity : java.util.ConcurrentModificationException

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java.lang.RuntimeException: Unable to start activity : java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
at com.google.android.gms.analytics.GoogleAnalytics.g(Unknown Source)
at com.google.android.gms.analytics.GoogleAnalytics$b.onActivityStarted(Unknown Source)
at android.app.Application.dispatchActivityStarted(Application.java:199)
at android.app.Activity.onStart(Activity.java:1180)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:536)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1243)
at android.app.Activity.performStart(Activity.java:5969)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2277)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2388)
at android.app.ActivityThread.access$800(ActivityThread.java:148)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5312)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)

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