Question

我正在尝试让我的机器人进行设置，但是它给了我Cannot read property 'setActivity' of null。这是代码的一部分：

bot.login(token);

bot.user.setActivity('activity', { type: 'WATCHING'})

告诉我是否需要其他解决方法。谢谢！

Answer 1

这是因为您的机器人还没有准备好。

尝试将您的函数放入如下所示的就绪事件中：

var query = from product in dbContext.Products
                         join eventProduct in dbContext.EventProducts
                             on new { pIndex = product.index, eIndex = currentEvent.index }
                                equals new { pIndex = eventProduct.Product.index, eIndex = eventProduct.Event.index } into temp
                         from eventProduct in temp.DefaultIfEmpty()
                         select new Associations.ProductEventProduct { 
                             Product = product,
                             EventProduct = eventProduct
                         };
            var dataSource = query.ToList();

            foreach (Associations.ProductEventProduct entry in dataSource)
            {
                if (entry.EventProduct == null)
                {
                    entry.EventProduct = new EventProduct
                    {
                        Product = entry.Product,
                        Event = currentEvent,
                        quantity_allocated = 0,
                        quantity_sold = 0,
                        quantity_sampled = 0
                    };
                }
            }

顺便确保将bot.once('ready', () => { bot.user.setActivity('activity', { type: 'WATCHING'}); });部分放在后面（例如，在文件的最后一行）

discord.js机器人在设置状态时显示错误

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