Question

使用以下命令启动Firebase项目模拟器（使用云功能和Firestore）

firebase emulators:start

它成功运行，并为我提供了连接功能的路径，并显示了Firestore的本地主机URL。

然后，要执行我的笑话测试，请运行以下命令

firebase emulators:exec --only firestore jest

根据文档，要连接到本地firstore，我们需要使用exec。但是它的抛出错误以下。

i  emulators: Starting emulators: firestore
⚠  emulators: emulator hub unable to start on port 4400, starting on 4401
✔  hub: emulator hub started at http://localhost:4401
i  Shutting down emulators.
i  Stoppping emulator hub
⚠  Port 8080 is not open on localhost, could not start firestore emulator.
i  To select a different host/port for the emulator, update your "firebase.json":
    {
      // ...
      "emulators": {
        "firestore": {
          "host": "HOST",
          "port": "PORT"
        }
      }
    }
i  Shutting down emulators.
Error: Could not start firestore emulator, port taken.

每次运行exec命令时都会引发此错误。有人可以指出出什么问题吗？

编辑：来自Firebase模拟器的日志：开始

firebase emulators:start
i  emulators: Starting emulators: functions, firestore, hosting, pubsub
✔  hub: emulator hub started at http://localhost:4400
⚠  Your requested "node" version "8" doesn't match your global version "10"
✔  functions: functions emulator started at http://localhost:5001
i  firestore: Serving ALL traffic (including WebChannel) on http://localhost:8080
⚠  firestore: Support for WebChannel on a separate port (8081) is DEPRECATED and will go away soon. Please use port above instead.
i  firestore: firestore emulator logging to firestore-debug.log
✔  firestore: firestore emulator started at http://localhost:8080
i  firestore: For testing set FIRESTORE_EMULATOR_HOST=localhost:8080
i  hosting[website]: Serving hosting files from: public
✔  hosting[website]: Local server: http://localhost:5000
i  hosting[admin]: Serving hosting files from: public
✔  hosting[admin]: Local server: http://localhost:5005
i  hosting[b2b]: Serving hosting files from: public
✔  hosting[b2b]: Local server: http://localhost:5006
i  hosting[b2c]: Serving hosting files from: public
✔  hosting[b2c]: Local server: http://localhost:5007
i  hosting[sdk]: Serving hosting files from: public
✔  hosting[sdk]: Local server: http://localhost:5008
✔  hosting: hosting emulator started at http://localhost:5000
i  pubsub: pubsub emulator logging to pubsub-debug.log
✔  pubsub: pubsub emulator started at http://localhost:8085

Answer 1

<块引用>

lsof 命令在 windows powershell 上不可用。

更好的跨平台解决方案是：npx kill-port 8080

Answer 2

在终端中输入以下内容：

lsof -ti tcp:8080 | xargs kill (8080 is your port number)

原因：heightPixels。

Answer 3

firepit（可通过curl安装的独立CLI）存在一个问题：#1868

将其安装为Node软件包可能会有所帮助：npm install -g firebase-tools

如果已经是这种情况，则可能应该在此处提出问题。

Answer 4

我关闭终端，然后再次打开它，再次启动命令，它可以工作

无法通过exec连接到Firebase模拟器套件

4 个答案: