類型不匹配：無法從元素類型對象轉換為播放器

Question

這是代碼。 不知道怎么了。 發生在說

for (Player players : World.getPlayers()) {
    if (cmd[0].equalsIgnoreCase("ticket")) {
        if (player.getRights() > 0) {
            if (World.getTicketList().size() == 0) {
                player.getPackets().sendGameMessage("No one needs help so sit back and relax.");
                return true;
            }
            String username = World.getTicketList().get(0).toString();
            Player p2 = World.getPlayer(username);
            player.setNextWorldTile(p2);
            p2.getPackets().sendGameMessage("Please ask your question to " + Misc.formatPlayerNameForDisplay(player.getUsername()) + ".");
            World.remoteTicket(username.toLowerCase());
            return true;
        }
        if (World.getTicketList().contains(player.getUsername().toLowerCase())) {
            player.getPackets().sendGameMessage("You already submitted a ticket.", true);
            return true;
        }
        World.addToTicket(player.getUsername());
        player.getPackets().sendGameMessage("Your ticket has been submitted. Your ticket number is " + World.getTicketId(player.getUsername()) + 1 + ".");
        player.getPackets().sendGameMessage("Make sure that you are not in a PvP area..");
        String username = World.getTicketList().get(0).toString();
        for (Player players : World.getPlayers()) {
            if (player.getRights() > 0) {
                players.getPackets().sendGameMessage(Misc.formatPlayerNameForDisplay(player.getUsername()) + " has issued a assistance request.", true);
            }
        }
        return true;
    }
}

編輯：

這是getPlayers的代碼

public static final EntityList getPlayers() {
    return players;
}

Answer 1

確保World.getPlayers（）返回的任何內容都實現java.lang.Iterable

Answer 2

問題在for循環中。 更改為

for (Object player : World.getPlayers()) {
     if (((Player)player).getRights() > 0)
         players.getPackets().sendGameMessage(Misc.formatPlayerNameForDisplay(player.getUsername())+" has issued a assistance request.", true);
     }
}

那應該工作。