Firestore云功能未部署

Question

在我的收藏集“我的英雄学院”中创建文档后，我正尝试发送通知。因此，我修改了一些代码，但是当我尝试部署它时，却出现了错误。

Error: Functions did not deploy properly.

代码：

import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();

//const db = admin.firestore();
const fcm = admin.messaging();

export const sendToTopic = functions.firestore
    .document('My Hero Academia/{chapterid}')
    .onCreate(async snapshot => {
        const chapter = snapshot.data();
        const payload: admin.messaging.MessagingPayload = {
            notification: {
                title: 'A new chapter is out',
                body: `Read Boku no Hero Academia Chapter ${chapter.number} now`,
                clickAction: 'FLUTTER_NOTIFICATION_CLICK'
            }
        };
        return fcm.sendToTopic('My Hero Academia', payload);
    });

我到底在做什么错？