firebase emulators:start not working

[pastorius187]

[REQUIRED] Environment info

13.14.2

firebase-tools-instant-win.exe

firebase-tools:

Platform:
Windows 11

[REQUIRED] Test case

!-- Provide a minimal, complete, and verifiable example (http://stackoverflow.com/help/mcve) -->
I want to run the emulator.

[REQUIRED] Steps to reproduce

Everything works perfectly until I enter

firebase emulators:start

I get

firebase emulators:start
i emulators: Starting emulators: database
i database: Database Emulator logging to database-debug.log
i ui: Emulator UI logging to ui-debug.log
! ui: Fatal error occurred:
Emulator UI has exited with code: 1,
stopping all running emulators
i ui: Stopping Emulator UI
i database: Stopping Database Emulator
! Database Emulator has exited upon receiving signal: SIGINT
i hub: Stopping emulator hub
i logging: Stopping Logging Emulator

Having trouble? Try firebase [command] --help

[REQUIRED] Expected behavior

Start emulator

[REQUIRED] Actual behavior

firebase emulators:start --debug
[2024-07-30T21:13:31.374Z] > command requires scopes: ["email","openid","https://www.googleapis.com/auth/cloudplatformprojects.readonly","https://www.googleapis.com/auth/firebase","https://www.googleapis.com/auth/cloud-platform"]
[2024-07-30T21:13:31.375Z] > authorizing via signed-in user (vasek.jezek@gmail.com)
[2024-07-30T21:13:31.477Z] java version "21.0.1" 2023-10-17 LTS

[2024-07-30T21:13:31.477Z] Java(TM) SE Runtime Environment (build 21.0.1+12-LTS-29)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.1+12-LTS-29, mixed mode, sharing)

[2024-07-30T21:13:31.490Z] Parsed Java major version: 21
i emulators: Starting emulators: database {"metadata":{"emulator":{"name":"hub"},"message":"Starting emulators: database"}}
[2024-07-30T21:13:31.500Z] [logging] Logging Emulator only supports listening on one address (127.0.0.1). Not listening on ::1
[2024-07-30T21:13:31.500Z] [database] Database Emulator only supports listening on one address (127.0.0.1). Not listening on ::1
[2024-07-30T21:13:31.501Z] assigned listening specs for emulators {"user":{"hub":[{"address":"127.0.0.1","family":"IPv4","port":4400},{"address":"::1","family":"IPv6","port":4400}],"ui":[{"address":"127.0.0.1","family":"IPv4","port":4000},{"address":"::1","family":"IPv6","port":4000}],"logging":[{"address":"127.0.0.1","family":"IPv4","port":4500}],"database":[{"address":"127.0.0.1","family":"IPv4","port":9000}]},"metadata":{"message":"assigned listening specs for emulators"}}
[2024-07-30T21:13:31.507Z] [hub] writing locator at C:\Users\vasek\AppData\Local\Temp\hub-ginzel-f75a8.json
[2024-07-30T21:13:31.514Z] >>> [apiv2][query] GET https://firebase.googleapis.com/v1beta1/projects/ginzel-f75a8 [none]
[2024-07-30T21:13:31.771Z] <<< [apiv2][status] GET https://firebase.googleapis.com/v1beta1/projects/ginzel-f75a8 200
[2024-07-30T21:13:31.772Z] <<< [apiv2][body] GET https://firebase.googleapis.com/v1beta1/projects/ginzel-f75a8 {"projectId":"ginzel-f75a8","projectNumber":"1000465334684","displayName":"Ginzel","name":"projects/ginzel-f75a8","resources":{"hostingSite":"ginzel-f75a8","realtimeDatabaseInstance":"ginzel-f75a8-default-rtdb","storageBucket":"ginzel-f75a8.appspot.com","locationId":"europe-central2"},"state":"ACTIVE","etag":"1_11f36aa5-5297-48bc-a0f1-a54e41cb6ae5"}
[2024-07-30T21:13:31.772Z] database rules config: [{"instance":"ginzel-f75a8-default-rtdb","rules":"C:\Users\vasek\Documents\firebase\database.rules.json"}]
[2024-07-30T21:13:31.777Z] Ignoring unsupported arg: projectId {"metadata":{"emulator":{"name":"database"},"message":"Ignoring unsupported arg: projectId"}}
[2024-07-30T21:13:31.778Z] Ignoring unsupported arg: auto_download {"metadata":{"emulator":{"name":"database"},"message":"Ignoring unsupported arg: auto_download"}}
[2024-07-30T21:13:31.778Z] Ignoring unsupported arg: rules {"metadata":{"emulator":{"name":"database"},"message":"Ignoring unsupported arg: rules"}}
[2024-07-30T21:13:31.778Z] Starting Database Emulator with command {"binary":"java","args":["-Duser.language=en","-jar","C:\Users\vasek\.cache\firebase\emulators\firebase-database-emulator-v4.11.2.jar","--host","127.0.0.1","--port",9000,"--single_project_mode","Warning"],"optionalArgs":["port","host","functions_emulator_port","functions_emulator_host","single_project_mode"],"joinArgs":false,"shell":false} {"metadata":{"emulator":{"name":"database"},"message":"Starting Database Emulator with command {"binary":"java","args":["-Duser.language=en","-jar","C:\\Users\\vasek\\.cache\\firebase\\emulators\\firebase-database-emulator-v4.11.2.jar","--host","127.0.0.1","--port",9000,"--single_project_mode","Warning"],"optionalArgs":["port","host","functions_emulator_port","functions_emulator_host","single_project_mode"],"joinArgs":false,"shell":false}"}}
i database: Database Emulator logging to database-debug.log {"metadata":{"emulator":{"name":"database"},"message":"Database Emulator logging to \u001b[1mdatabase-debug.log\u001b[22m"}}
[2024-07-30T21:13:33.404Z] Ignoring unsupported arg: auto_download {"metadata":{"emulator":{"name":"ui"},"message":"Ignoring unsupported arg: auto_download"}}
[2024-07-30T21:13:33.404Z] Ignoring unsupported arg: port {"metadata":{"emulator":{"name":"ui"},"message":"Ignoring unsupported arg: port"}}
[2024-07-30T21:13:33.405Z] Starting Emulator UI with command {"binary":"node","args":["C:\Users\vasek\.cache\firebase\emulators\ui-v1.13.0\server\server.mjs"],"optionalArgs":[],"joinArgs":false,"shell":false} {"metadata":{"emulator":{"name":"ui"},"message":"Starting Emulator UI with command {"binary":"node","args":["C:\\Users\\vasek\\.cache\\firebase\\emulators\\ui-v1.13.0\\server\\server.mjs"],"optionalArgs":[],"joinArgs":false,"shell":false}"}}
i ui: Emulator UI logging to ui-debug.log {"metadata":{"emulator":{"name":"ui"},"message":"Emulator UI logging to \u001b[1mui-debug.log\u001b[22m"}}
[2024-07-30T21:13:33.546Z] node:internal/modules/cjs/loader:986
throw new ERR_REQUIRE_ESM(filename, true);
^

Error [ERR_REQUIRE_ESM]: require() of ES Module C:\Users\vasek.cache\firebase\emulators\ui-v1.13.0\server\server.mjs not supported.
Instead change the require of C:\Users\vasek.cache\firebase\emulators\ui-v1.13.0\server\server.mjs to a dynamic import() which is available in all CommonJS modules.
at Function.runMain (pkg/prelude/bootstrap.js:1979:12) {
code: 'ERR_REQUIRE_ESM'
}

Node.js v18.5.0
{"metadata":{"emulator":{"name":"ui"},"message":"node:internal/modules/cjs/loader:986\r\n throw new ERR_REQUIRE_ESM(filename, true);\r\n ^\r\n\r\nError [ERR_REQUIRE_ESM]: require() of ES Module C:\Users\vasek\.cache\firebase\emulators\ui-v1.13.0\server\server.mjs not supported.\r\nInstead change the require of C:\Users\vasek\.cache\firebase\emulators\ui-v1.13.0\server\server.mjs to a dynamic import() which is available in all CommonJS modules.\r\n at Function.runMain (pkg/prelude/bootstrap.js:1979:12) {\r\n code: 'ERR_REQUIRE_ESM'\r\n}\r\n\r\nNode.js v18.5.0\r\n"}}
! ui: Fatal error occurred:
Emulator UI has exited with code: 1,
stopping all running emulators {"metadata":{"emulator":{"name":"ui"},"message":"Fatal error occurred: \n Emulator UI has exited with code: 1, \n stopping all running emulators"}}
i ui: Stopping Emulator UI {"metadata":{"emulator":{"name":"ui"},"message":"Stopping Emulator UI"}}
i database: Stopping Database Emulator {"metadata":{"emulator":{"name":"database"},"message":"Stopping Database Emulator"}}
! Database Emulator has exited upon receiving signal: SIGINT
i hub: Stopping emulator hub {"metadata":{"emulator":{"name":"hub"},"message":"Stopping emulator hub"}}
i logging: Stopping Logging Emulator {"metadata":{"emulator":{"name":"logging"},"message":"Stopping Logging Emulator"}}

Having trouble? Try firebase [command] --help

ui-debug.log

node:internal/modules/cjs/loader:986
throw new ERR_REQUIRE_ESM(filename, true);
^

Error [ERR_REQUIRE_ESM]: require() of ES Module C:\Users\vasek.cache\firebase\emulators\ui-v1.13.0\server\server.mjs not supported.
Instead change the require of C:\Users\vasek.cache\firebase\emulators\ui-v1.13.0\server\server.mjs to a dynamic import() which is available in all CommonJS modules.
at Function.runMain (pkg/prelude/bootstrap.js:1979:12) {
code: 'ERR_REQUIRE_ESM'
}

Node.js v18.5.0

[aalej]

Hey @pastorius187, thanks for sharing debug logs. From what I can tell, you’re encountering a similar issue to #6931. A detailed explanation of why this is occurring can be found in #6931 (comment). Currently, to workaround the issue, you could either try installing firebase-tools through npm i firebase-tools -g or disabling the Emulator UI:

{
  ...
  "emulators": {
    "firestore": {
      "port": 8080
    },
    "hosting": {
      "port": 5000
    },
    "ui": {
      "enabled": false // Disables the emulator UI
    },
    "singleProjectMode": true
  }
  ...
}

I’ll be closing this as a duplicate, please refer to the other ticket for any updates. If you think this is a mistake, feel free to ask this issue to be reopened.