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the name must not be empty: null
java.lang.IllegalArgumentException: the name must not be empty: null at android.accounts.Account.<init>(Account.java:48) at com.android.calendar.calendarlist.CalendarListUtils.processCursor(CalendarListUtils.java:155) at com.android.calendar.calendarlist.SelectCalendarsAdapter.swapCursor(SelectCalendarsAdapter.java:160) at com.android.calendar.calendarlist.DrawerFragment.onLoadFinished(DrawerFragment.java:244) at com.android.calendar.calendarlist.DrawerFragment.onLoadFinished(DrawerFragment.java:55) at android.app.LoaderManagerImpl$LoaderInfo.callOnLoadFinished(LoaderManager.java:483) at android.app.LoaderManagerImpl$LoaderInfo.onLoadComplete(LoaderManager.java:451) at android.content.Loader.deliverResult(Loader.java:144) at android.content.CursorLoader.deliverResult(CursorLoader.java:109) at android.content.CursorLoader.deliverResult(CursorLoader.java:97) at android.content.AsyncTaskLoader.dispatchOnLoadComplete(AsyncTaskLoader.java:265) at android.content.AsyncTaskLoader$LoadTask.onPostExecute(AsyncTaskLoader.java:92) at android.os.AsyncTask.finish(AsyncTask.java:651)