I have a problem with creating a new Calendar in ICS. The Calendar should be synyable to the google Calendar. I try following:

            Uri calendarUri = CalendarContract.Calendars.CONTENT_URI;
        calendar.put(CalendarContract.Calendars.ACCOUNT_NAME, sync_account);
        calendar.put(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google");

        calendar.put(CalendarContract.Calendars.NAME, name);
        calendar.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, displayName);
        calendar.put(CalendarContract.Calendars.CALENDAR_COLOR, 0xFF008080);
        calendar.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_OWNER);
        calendar.put(CalendarContract.Calendars.OWNER_ACCOUNT, true);
        calendar.put(CalendarContract.Calendars.VISIBLE, 1);
        calendar.put(CalendarContract.Calendars.SYNC_EVENTS, 1);

        calendarUri = calendarUri.buildUpon()
            .appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true")
            .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, sync_account)
            .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google") // CalendarContract.ACCOUNT_TYPE_LOCAL
            .build();
        Uri result = activity.getContentResolver().insert(calendarUri, calendar);

an I get always this error:

    09-17 17:11:30.278: E/AndroidRuntime(13243): FATAL EXCEPTION: CalendarSyncAdapterAccountMonitor
09-17 17:11:30.278: E/AndroidRuntime(13243): java.lang.IllegalArgumentException: the name must not be empty: null
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.accounts.Account.<init>(Account.java:48)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at com.google.android.syncadapters.calendar.CalendarSyncAdapter.onAccountsUpdated(CalendarSyncAdapter.java:1129)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.accounts.AccountManager$11.run(AccountManager.java:1279)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.os.Handler.handleCallback(Handler.java:605)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.os.Handler.dispatchMessage(Handler.java:92)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.os.Looper.loop(Looper.java:137)
09-17 17:11:30.278: E/AndroidRuntime(13243):    at android.os.HandlerThread.run(HandlerThread.java:60)
09-17 17:11:30.293: E/android.os.Debug(1989): !@Dumpstate > dumpstate -k -t -n -z -d -o /data/log/dumpstate_app_error

What can I do with the CalendarSyncAdapterAccountMonitor, that it is not empty?

Thanks in advance.