Firestore / Firebase模拟器未运行

Question

我正在尝试使用此处列出的指南在本地测试我的功能 ：https：//firebase.google.com/docs/functions/local-emulator

我已经安装了最新的firebase-tools

npm install -g firebase-tools

在我package.json我确认正在运行

"firebase-admin": "^7.3.0",
"firebase-functions": "^2.3.1",

当我尝试使用以下命令运行函数时

firebase emulators:start

它给了我下面的输出。我究竟做错了什么？

Starting emulators: ["functions"]
?  Your requested "node" version "8" doesn't match your global version "11"
?  functions: Emulator started at http://localhost:5001
i  functions: Watching "[FUNCTIONS FOLDER PATH]" for Cloud Functions...
?  Default "firebase-admin" instance created!
?  Ignoring trigger "[FUNCTION NAME]" because the service "firebaseauth.googleapis.com" is not yet supported.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.
?  Ignoring trigger "[FUNCTION NAME]" because the Cloud Firestore emulator is not running.

etc.
etc.
etc.
i  functions: HTTP trigger initialized at http://localhost:5001/[APP NAME]/us-central1/[FUNCTION NAME]

[2019-05-15T21:43:52.436Z]  @firebase/database: FIREBASE WARNING:  
{"code":"app/invalid-credential","message":"Credential implementation provided to   
initializeApp() via the \"credential\" property failed to fetch a valid Google  
OAuth2 access token with the following error: \"Error fetching access token: Error  
while making request: getaddrinfo ENOTFOUND metadata.google.internal  
metadata.google.internal:80. Error code: ENOTFOUND\"."} 

Answer 1

我遇到了同样的问题，我有些问题

1. 通过运行firebase setup：emulators：firestore来确保已安装模拟器

我的第二个问题是我的初始Firebase配置已将配置文件安装到我的主文件夹中，然后安装到了[此处]描述的项目文件夹中， 这意味着我的项目缺少了firestore.rules和firestore.indexes.json以及某些配置设置。

运行firebase init以生成这些文件

一旦修复了这两件事，它就对我有用。我希望这有帮助。

作为参考，我的firebase.json看起来像这样

{
  "functions": {
    "predeploy": [
      "npm --prefix \"$RESOURCE_DIR\" run lint",
      "npm --prefix \"$RESOURCE_DIR\" run build"
    ]
  },
  "firestore": {
    "rules": "firestore.rules",
    "indexes": "firestore.indexes.json"
  },
  "hosting": {
    "public": "dist",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ]
  },
  "emulators": {
    "firestore": {
      "port": "5002"
    }
  }
}

Answer 2

可能是您的 firebase.json 文件中没有正确配置 firestore。这使得模拟器无法启动。

您需要的是firebase init firestore在您的项目目录中运行。这将创建 firestore 规则和索引文件，并相应地更新您的 firebase.json。

Answer 3

从7.8.0Firebase CLI ( firebase-tools)版本开始，有一个新命令firebase init emulators可以帮助您设置要运行的所有模拟器。

Answer 4

如果检查Firebase设置不起作用，请尝试以下操作：

• 运行firebase emulators:start。检查是否显示错误请求以安装OpenJDK。
• 如果您的功能与Firebase API或Google API交互，则需要设置管理员凭据。在此处查看操作方法：https：//firebase.google.com/docs/functions/local-emulator
• 您可能需要同时模拟函数和Firestore。使用firebase emulators:start --only functions,firestore或firebase serve --only functions,firestore。
• 请记住，pubsub尚未被支持。

Answer 5

实际上，当用户在没有数据库的情况下初始化 firebase 项目时，就会出现此错误。因此该命令firebase emulators:start --only database无法启动数据库模拟器，因为它需要“database.rules.json”文件和 firebase.json 文件中的数据库配置条目。因此，如果您忘记在firebase init命令中初始化数据库，那么您可以随时按照 firebase CLI 命令添加 firebase 数据库

firebase init database

然后您可以firebase emulators:start --only database 在 localserver 中运行 以启动数据库模拟器。

如果您想对函数和数据库都使用模拟器，则运行 firebase serve --only functions,database

Answer 6

简单修复

1. 检查您是否有最新的firebase-tools(8.x)
2. 添加一个空的firestore配置firebase.json

{
  "functions": {
    ...
  },
  "firestore": {}
}

这将告诉firebase-tools您初始化并运行 firestore 模拟器。