I get this error in EventEmitter.js during the project build process.

[msuzenozka]

Description

ERROR SyntaxError: /Users/msuzen/SCMMobile/node_modules/react-native/Libraries/vendor/emitter/EventEmitter.js: Unexpected token, expected "]" (39:5)

37 |
38 | type Registry<TEventToArgsMap: {...}> = {

39 | [K in keyof TEventToArgsMap]: Set<Registration<TEventToArgsMap[K]>>,
| ^
40 | };

---

{
"name": "SCMMobile",
"version": "0.0.1",
"private": true,
"scripts": {
"android": "react-native run-android",
"ios": "react-native run-ios",
"lint": "eslint .",
"start": "react-native start",
"test": "jest"
},
"dependencies": {
"@react-native-async-storage/async-storage": "^1.23.1",
"@react-native-community/datetimepicker": "^8.2.0",
"@react-native-community/geolocation": "^3.2.1",
"@react-native-community/masked-view": "^0.1.11",
"@react-navigation/drawer": "^6.6.3",
"@react-navigation/native": "^6.1.7",
"@react-navigation/stack": "^6.3.17",
"axios": "^1.6.8",
"date-fns": "^3.6.0",
"lodash": "^4.17.21",
"lottie-react-native": "^6.7.2",
"react": "18.3.1",
"react-native": "^0.76.6",
"react-native-dropdown-picker": "^5.4.6",
"react-native-element-dropdown": "^2.12.0",
"react-native-elements": "^3.4.3",
"react-native-gesture-handler": "^2.16.2",
"react-native-get-location": "^4.0.1",
"react-native-keyboard-aware-scroll-view": "^0.9.5",
"react-native-modal-datetime-picker": "^16.0.0",
"react-native-safe-area-context": "^4.7.1",
"react-native-screens": "^3.22.1",
"react-native-sqlite-storage": "^6.0.1",
"react-native-storage": "^0.2.4",
"react-native-svg-transformer": "^1.5.0",
"react-native-uuid": "^2.0.2",
"react-native-vision-camera": "^4.0.3",
"react-native-webview": "^13.10.2",
"react-native-worklets-core": "^1.5.0"
},
"devDependencies": {
"@babel/core": "^7.26.0",
"@babel/plugin-proposal-private-methods": "^7.18.6",
"@babel/plugin-proposal-private-property-in-object": "^7.21.11",
"@babel/plugin-transform-class-properties": "^7.25.9",
"@babel/plugin-transform-private-methods": "^7.25.9",
"@babel/plugin-transform-private-property-in-object": "^7.25.9",
"@babel/preset-env": "^7.26.0",
"@babel/preset-react": "^7.26.3",
"@babel/runtime": "^7.26.0",
"@react-native-community/cli": "^15.1.3",
"@react-native/babel-preset": "^0.76.6",
"@react-native/eslint-config": "^0.76.6",
"@react-native/metro-config": "^0.76.6",
"@tsconfig/react-native": "^3.0.5",
"@types/react": "^18.3.18",
"@types/react-native": "^0.72.8",
"@types/react-native-sqlite-storage": "^6.0.5",
"@types/react-native-vector-icons": "^6.4.18",
"@types/react-test-renderer": "^18.0.0",
"babel-jest": "^29.2.1",
"eslint": "^8.19.0",
"jest": "^29.2.1",
"metro-react-native-babel-preset": "^0.76.5",
"patch-package": "^8.0.0",
"postinstall-postinstall": "^2.1.0",
"prettier": "^2.4.1",
"react-native-paper": "^5.12.5",
"react-native-reanimated": "^3.16.6",
"react-test-renderer": "18.2.0",
"typescript": "^4.8.4"
},
"engines": {
"node": ">=16"
}
}

Steps to reproduce

npm install
npx react-native run-ios

React Native Version

0.76.6

Output of npx react-native info

System:
  OS: macOS 15.1.1
  CPU: (4) x64 Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
  Memory: 1.68 GB / 32.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 23.5.0
    path: /usr/local/bin/node
  Yarn:
    version: 1.22.22
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.2
    path: /usr/local/bin/npm
  Watchman:
    version: 2024.12.02.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /usr/local/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.2
      - iOS 18.2
      - macOS 15.2
      - tvOS 18.2
      - visionOS 2.2
      - watchOS 11.2
  Android SDK: Not Found
IDEs:
  Android Studio: Not Found
  Xcode:
    version: 16.2/16C5032a
    path: /usr/bin/xcodebuild
Languages:
  Java: Not Found
  Ruby:
    version: 3.4.1
    path: /usr/local/opt/ruby/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 15.1.3
    wanted: ^15.1.3
  react:
    installed: 18.3.1
    wanted: 18.3.1
  react-native:
    installed: 0.76.6
    wanted: ^0.76.6
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: false
  newArchEnabled: true

msuzen@MACs-iMac SCMMobile % 
 *  History restored 

msuzen@MACs-iMac SCMMobile % npx react-native info
(node:1628) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
warn Package react-native-sqlite-storage contains invalid configuration: "dependency.platforms.ios.project" is not allowed. Please verify it's properly linked using "npx react-native config" command and contact the package maintainers about this.
info Fetching system and libraries information...
System:
  OS: macOS 15.1.1
  CPU: (4) x64 Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
  Memory: 13.06 GB / 32.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 23.5.0
    path: /usr/local/bin/node
  Yarn:
    version: 1.22.22
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.2
    path: /usr/local/bin/npm
  Watchman:
    version: 2024.12.02.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /usr/local/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.2
      - iOS 18.2
      - macOS 15.2
      - tvOS 18.2
      - visionOS 2.2
      - watchOS 11.2
  Android SDK: Not Found
IDEs:
  Android Studio: Not Found
  Xcode:
    version: 16.2/16C5032a
    path: /usr/bin/xcodebuild
Languages:
  Java: Not Found
  Ruby:
    version: 3.4.1
    path: /usr/local/opt/ruby/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 15.1.3
    wanted: ^15.1.3
  react:
    installed: 18.3.1
    wanted: 18.3.1
  react-native:
    installed: 0.76.6
    wanted: ^0.76.6
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: false
  newArchEnabled: true

Screenshots and Videos

[react-native-bot]

Warning

Missing reproducer: We could not detect a reproducible example in your issue report. Please provide either:

• If your bug is UI related: a Snack
• If your bug is build/upgrade related: a project using our Reproducer Template
• Otherwise send us a Pull Request with the RNTesterPlayground.js edited to reproduce your bug.

[cipolleschi]

duplicated of #46355.

@msuzenozka please do not open duplicated issues, I saw you already found the original one. Read through the comments as @huntie already provided resolution there.

[muratsuzen]

I'm having the same problem, although I tried the suggested solution. Does anyone have any other solution suggestions?