How to send a message to the VK api group?

I am trying to send a message to the group via Api Vk Android, but the message is not sent, there is authorization, the group wall is open

vkParametersMess = VKParameters.from( VKApiConst.GROUP_ID, 111111111, VKApiConst.MESSAGE, "Всем привет"); VKRequest mess = new VKRequest("messages.send",vkParametersMess); mess.executeWithListener(new VKRequestListener() { @Override public void onComplete(VKResponse response) { super.onComplete(response); Log.i("VK", "Отправлено сообщение "); } }); } });