Join Group Chat XMPP Exception
<p>I'm using XMPP to join group chat with this code</p>

<pre><code>MultiUserChat.addInvitationListener(mConnection,
                        new InvitationListener() {

                            @Override
                            public void invitationReceived(Connection connection,
                                    String room, String inviter, String reason,
                                    String unKnown, Message message) {  

                                //MultiUserChat.decline(mXmppConnection, room, inviter,
                                    //  "Don't bother me right now");
                                // MultiUserChat.decline(mXmppConnection, room, inviter,
                                // "Don't bother me right now");
                                try {
                                      MultiUserChat muc2 = new MultiUserChat(mConnection, room);
                                      // User2 joins the new room using a password
                                      // The room service will decide the amount of history to send
                                      muc2.join("coba");

                                   Log.e("abc","join room successfully");
                                   muc2.sendMessage("I joined this room!! Bravo!!");
                                } catch (XMPPException e) {
                                   e.printStackTrace();
                                   Log.e("abc","join room failed!");
                                }
                            }
                        });
</code></pre>

<p>in the code above is the listener when user invite other user to join..
but then muc2.join("nickname") it enter exception that say that recepient unavaiable (404). any suggestion? thx</p>
