Cannot connect to vm service on real device when the Flutter update to 2.x #84069
Closed as not planned
Description
Steps to Reproduce
IMPORTANT Make sure your flutter version is 2.x, I reproduced the problem on 2.0.1 stable and 2.2.1 stable. But everything works fine on the old version like 1.22.3 stable. AND everything works fine on the simulator.
- Clone my demo project
flutter pub getflutter run: Run the demo on iPhone real device, Android real device and simulator.- Press the button in the demo, check debug output
Expected results: The connection on Flutter 2.x is normal like the Flutter 1.22.3.
Actual results:
| iOS device | Android device | Simulator | |
|---|---|---|---|
| Flutter 1.22.3 | ✅ | ✅ | ✅ |
| Flutter 2.0.1 | ❌ | ❌ | ✅ |
| Flutter 2.2.1 | ❌ | ❌ | ✅ |
Details
iOS real device output (iPhone 7 Plus with iOS 12.4, iPhone 11 Pro with iOS 14.0):
[VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: SocketException: OS Error: Connection refused, errno = 61, address = 127.0.0.1, port = 63737
Android real device output (Samsung S10 with Android 11):
E/flutter (21242): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: SocketException: OS Error: Connection refused, errno = 111, address = 127.0.0.1, port = 57704
This is the core code:
ServiceProtocolInfo info = await Service.getInfo();
String url = info.serverUri.toString();
Uri uri = Uri.parse(url);
Uri socketUri = convertToWebSocketUrl(serviceProtocolUrl: uri);
final isolateId = Service.getIsolateID(Isolate.current);
final service = await vmServiceConnectUri(socketUri.toString());