关于 中间件 Middleware 中 memberJoinRequestProcessor 的一些错误 about mirai-js HOT 4 CLOSED

bot.on('FriendMessage', async data => {
    await bot.sendMessage({
        // 群号
        group: '759568028',
        // 是 http server 接口所需的原始格式，若提供则优先使用
        message: [
            { type: 'Plain', text: 'hello world!' },
        ],
    });
});

PS > node .\app.js
(node:15408) UnhandledPromiseRejectionWarning: Error: Request failed with status code 400
参数格式错误
    at module.exports (node_modules\mirai-js\src\util\errorHandler.js:15:15)
    at module.exports (node_modules\mirai-js\src\core\sendGroupMessage.js:31:9)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async Bot.sendMessage (node_modules\mirai-js\src\Bot.js:252:24)
    at async app.js:17:5
(Use `node --trace-warnings ...` to show where the warning was created)
(node:15408) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)
(node:15408) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.