Press 'J' Open debugger does not work on SDK 50 #26044
Description
Minimal reproducible example
https://github.com/palmerhyde/expo-sdk-50/
Summary
Minimal reproducible example
Minimal repro is in the summary below. It is a vanilla install.
Summary
Create a new vanilla project with SDK 50
npx create-expo-app --template blank@beta
? What is your app named? › expo-50
cd expo 50
npx expo start
i to launch iOS emulator
a to launch Android emulator
j to launch debugger
Error message - _Debug: No compatible apps connected. JavaScript Debugging can only be used with the Hermes engine. Learn more: https://docs.expo.dev/guides/using-hermes/
If I follow the same steps above with SDK 49 the debugger launches as expected.
Note on SDK 50, I I open chrome and go to http://[my ip address]:8081/json/list an empty json array is returned [] If I go to the same url with SDK 49 a list of devices is returned.
[
{
"id": "2-4",
"description": "host.exp.exponent",
"title": "Hermes React Native",
"faviconUrl": "https://reactjs.org/favicon.ico",
"devtoolsFrontendUrl": "devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=%5B%3A%3A1%5D%3A8081%2Finspector%2Fdebug%3Fdevice%3D2%26page%3D4",
"type": "node",
"webSocketDebuggerUrl": "ws://[::1]:8081/inspector/debug?device=2&page=4",
"vm": "Hermes",
"deviceName": "sdk_gphone64_arm64 - 14 - API 34"
},
{
"id": "2--1",
"description": "host.exp.exponent",
"title": "React Native Experimental (Improved Chrome Reloads)",
"faviconUrl": "https://reactjs.org/favicon.ico",
"devtoolsFrontendUrl": "devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=%5B%3A%3A1%5D%3A8081%2Finspector%2Fdebug%3Fdevice%3D2%26page%3D-1",
"type": "node",
"webSocketDebuggerUrl": "ws://[::1]:8081/inspector/debug?device=2&page=-1",
"vm": "don't use",
"deviceName": "sdk_gphone64_arm64 - 14 - API 34"
},
{
"id": "3-2",
"description": "host.exp.Exponent",
"title": "Reanimated Runtime",
"faviconUrl": "https://reactjs.org/favicon.ico",
"devtoolsFrontendUrl": "devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=%5B%3A%3A1%5D%3A8081%2Finspector%2Fdebug%3Fdevice%3D3%26page%3D2",
"type": "node",
"webSocketDebuggerUrl": "ws://[::1]:8081/inspector/debug?device=3&page=2",
"vm": "Hermes",
"deviceName": "iPhone 14"
},
{
"id": "3-1",
"description": "host.exp.Exponent",
"title": "Hermes ABI49_0_0React Native",
"faviconUrl": "https://reactjs.org/favicon.ico",
"devtoolsFrontendUrl": "devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=%5B%3A%3A1%5D%3A8081%2Finspector%2Fdebug%3Fdevice%3D3%26page%3D1",
"type": "node",
"webSocketDebuggerUrl": "ws://[::1]:8081/inspector/debug?device=3&page=1",
"vm": "Hermes",
"deviceName": "iPhone 14"
},
{
"id": "3--1",
"description": "host.exp.Exponent",
"title": "React Native Experimental (Improved Chrome Reloads)",
"faviconUrl": "https://reactjs.org/favicon.ico",
"devtoolsFrontendUrl": "devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=%5B%3A%3A1%5D%3A8081%2Finspector%2Fdebug%3Fdevice%3D3%26page%3D-1",
"type": "node",
"webSocketDebuggerUrl": "ws://[::1]:8081/inspector/debug?device=3&page=-1",
"vm": "don't use",
"deviceName": "iPhone 14"
}
]
Environment
expo-env-info 1.0.5 environment info:
System:
OS: macOS 13.6.2
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 18.18.0 - ~/.nvm/versions/node/v18.18.0/bin/node
npm: 10.2.5 - ~/.nvm/versions/node/v18.18.0/bin/npm
Managers:
CocoaPods: 1.12.1 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: DriverKit 22.4, iOS 16.4, macOS 13.3, tvOS 16.4, watchOS 9.4
IDEs:
Android Studio: 2023.1 AI-231.9392.1.2311.11076708
Xcode: 14.3.1/14E300c - /usr/bin/xcodebuild
npmPackages:
expo: ~50.0.0-preview.4 => 50.0.0-preview.4
react: 18.2.0 => 18.2.0
react-native: 0.73.0 => 0.73.0
Expo Workflow: managed