Metro bundler does not start automatically when calling react-native run-android

[tapz]

Environment

System:
  OS: macOS 13.5.2
  CPU: (12) arm64 Apple M2 Max
  Memory: 1.67 GB / 96.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 18.17.1
    path: ~/.nvm/versions/node/v18.17.1/bin/node
  Yarn:
    version: 1.22.19
    path: /opt/homebrew/bin/yarn
  npm:
    version: 9.6.7
    path: ~/.nvm/versions/node/v18.17.1/bin/npm
  Watchman:
    version: 2023.10.02.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.13.0
    path: /opt/homebrew/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 23.0
      - iOS 17.0
      - macOS 14.0
      - tvOS 17.0
      - watchOS 10.0
  Android SDK:
    API Levels:
      - "34"
    Build Tools:
      - 34.0.0
    Android NDK: Not Found
IDEs:
  Android Studio: 2022.3 AI-223.8836.35.2231.10811636
  Xcode:
    version: 15.0/15A240d
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 20.0.1
    path: /usr/bin/javac
  Ruby:
    version: 2.6.10
    path: /usr/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 11.3.9
    wanted: ^11.3.9
  react:
    installed: 18.2.0
    wanted: 18.2.0
  react-native:
    installed: 0.72.6
    wanted: 0.72.6
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: true
  newArchEnabled: false

Description

When updated the cli to version 12 the Metro bundler does not start automatically anymore after react-native run-android. The app starts and works, but no Metro terminal window. Manually starting it with react-native start works just fine. Version 11.3.9 does not have this issue.

[szymonrybczak]

Hey @tapz, you shouldn't upgrade CLI manually, but if you need to do it you must take into account that there'll be some edge cases or strange situations like this one. In CLI v12 we migrated cli-plugin-metro inside Core so all parts related to starting and controlling a dev server are living there. So probably after upgrading to 0.73 which is in 3rd Release Candidate right now, this will work probably.

Could you please try creating new project and say is bundler starting from run-android comamnd?

npx react-native init RN073RC3 --version 0.73.0-rc.3

PS. Also you can try upgrading to latest RC in your app but I don't recommend it at this point.

[tapz]

@szymonrybczak I have added the CLI manually because some workaround for an RN bug required it. Not sure if that has already been fixed and I could remove the dependency.

[szymonrybczak]

@taps Yeah, so just try removing this CLI dependencies from your project. Maybe try bumping react-native version to 0.73.0-rc.3 (as I said this is not recommended). Stable version of 73 will be release in this month.

[Maddumage]

I have created a new React Native project using the latest React Native version (73). But It also has this issue.
I'm using Mac mini M2.

[robhogan]

The current issue is fixed by #2198 and will be included in RN 0.73.1, set for release next week.

[codewithsujeet]

try this solution and its works for me
step.1 start the new terminal and run these command
npm start
step.2 start one more new terminal and run these command
npm run android
metro load on terminal 1 where the npm start are run

[Shahzaib114]

For now, you can downgrade your version of react native to 0.72.9. most probably, metro working on this version

[usmanabid94]

I am also facing the same issue metro won't start automatically had to run the npm start command to run it on 0.72.4

[khurshidansarigeoai]

I am also facing same and i am using react native 0.73.6

[zcSkr]

I am also facing same and i am using react native 0.74

[zeeshan-shabbir]

I am also facing same with react native 0.73.6 on ios only