为 Firestore / 实时数据库启动 Firebase 模拟器？答案

【问题标题】：Start Firebase Emulators for Firestore / Realtime Database?为 Firestore / 实时数据库启动 Firebase 模拟器？
【发布时间】：2022-07-19 06:03:12
【问题描述】：

我尝试通过个人项目和位于此处的 Firebase Emulator Suite Codelab 启动 firebase firestore 和实时数据库模拟器： (https://firebase.google.com/codelabs/firebase-emulator#0) 使用 codelab，命令行在 'firebase emulators:start' 之后打印以下内容

[....] codelab-initial-state % firebase emulators:start --import=./seed
i  emulators: Starting emulators: auth, functions, firestore, hosting
⚠  functions: The following emulators are not running, calls to these services from the Functions emulator will affect production: database, pubsub, storage
⚠  Your requested "node" version "10" doesn't match your global version "17". Using node@17 from host.
i  firestore: Importing data from /Users/lucasfrench/Documents/emulators-codelab/codelab-initial-state/seed/firestore_export/firestore_export.overall_export_metadata
i  firestore: downloading cloud-firestore-emulator-v1.13.1.jar...
Progress: =====================================================================================================================================================================> (100% of 61MB)
i  firestore: Firestore Emulator logging to firestore-debug.log
i  emulators: Shutting down emulators.
i  functions: Stopping Functions Emulator
i  firestore: Stopping Firestore Emulator
i  hub: Stopping emulator hub

Error: TIMEOUT: Port 8080 on localhost was not active within 60000ms

这与我使用实时数据库模拟器的个人项目相同。但是，我在启动其他产品的模拟器（例如身份验证模拟器）或访问 UI 模拟器时没有任何问题。

【问题讨论】：

标签： firebase-tools

【解决方案1】：

这可能与this issue 有关。解决方法是指定您的本地主机地址（例如127.0.0.1）而不是localhost，并在您的firebase.json 中添加一个主机属性，其中也包含127.0.0.1。

https://github.com/firebase/firebase-tools/issues/2379#issuecomment-972852609

"firestore": {
    "port": 8080,
    "host": "127.0.0.1"
},

【讨论】：