Hot reload received invalid response #55552
Description
From time to time I have this error message when doing a "hot reload" Hot reload received invalid response: {type: Sentinel, kind: Collected, valueAsString: <collected>}.
When this happens, this is hard to get back to a correct workflow.
If I "hot restart", the file that I'm currently editing stays "stale": it keeps the old code even when I edit it. It looks like Flutter has a cache issue and does not detect that the file was edited.
I have to stop the app and do a full build again.
Environment:
- Device: iPhone 11 and iOS 13.3
- Host: macOS 10.15.4
- Flutter: beta 1.17.0-3.2.pre (I had the same problem with the previous beta)
- IntelliJ IDEA with flutter plugin 45.1.2
[✓] Flutter (Channel beta, v1.17.0-3.2.pre, on Mac OS X 10.15.4 19E287, locale en-BE)
• Flutter version 1.17.0-3.2.pre at /Users/xavier/projects/flutter_stable
• Framework revision 2a7bc389f2 (2 days ago), 2020-04-21 20:34:20 -0700
• Engine revision 4c8c31f591
• Dart version 2.8.0 (build 2.8.0-dev.20.10)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /Users/xavier/Library/Android/sdk
• Platform android-29, build-tools 29.0.2
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
✗ Android license status unknown.
Try re-installing or updating your Android SDK Manager.
See https://developer.android.com/studio/#downloads or visit visit
https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions.
[✓] Xcode - develop for iOS and macOS (Xcode 11.4.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.4.1, Build version 11E503a
• CocoaPods version 1.9.1
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 3.5)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 43.0.1
• Dart plugin version 191.8593
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
[✓] IntelliJ IDEA Ultimate Edition (version 2019.3.3)
• IntelliJ at /Applications/IntelliJ IDEA.app
• Flutter plugin version 45.1.2
• Dart plugin version 193.6494.35
[✓] VS Code (version 1.41.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.7.1
[✓] Connected device (4 available)
• Moto G 5 Plus • ZY224FKBCL • android-arm • Android 8.1.0 (API 27)
• Xavier’s iPhone • 00008030-00012D9C0212802E • ios • iOS 13.3.1
• Chrome • chrome • web-javascript • Google Chrome 81.0.4044.122
• Web Server • web-server • web-javascript • Flutter Tools
! Doctor found issues in 1 category.