This repo contains a simple Flutter counter hello world app, and a simple iOS Xcode project in which opens the FlutterEngine.
Issue link: Issue 133938
Hey all, I've been having some trouble embedding Flutter on a native iOS app. I've been following the Add a Flutter screen to an iOS app documentation, and the only time that it has worked is if I follow Option B - Embed frameworks in xcode, but specifically .xcframeworks that were generated in the Debug folder.
The entire error log message I get is as follows:
2023-09-03 10:57:39.771876-0300 HostApp[65357:3376845] Failed to find snapshot: /Users/alvarobarros/Library/Developer/CoreSimulator/Devices/CB35362B-3FC7-49E1-9A48-F4BC55ADAD67/data/Containers/Bundle/Application/95711AB2-7B50-4E48-9BBB-2FCF32034F82/HostApp.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin
And I get it, the kernel_blob.bin file contains Dart code that is used while running on JIT or Debug. The issue is, I get this error log even when using both .xcframework files generated on Release folder.
And it makes sense - Release/App.xcframework should not have a kernel_blob.bin file. But then Release/Flutter.xcframework should not be looking for it.
Below is my flutter doctor --verbose output:
[!] Flutter (Channel stable, 3.10.6, on macOS 13.0 22A8380 darwin-arm64, locale en-BR)
• Flutter version 3.10.6 on channel stable at /Users/alvarobarros/fvm/versions/3.10.6
! Warning: `dart` on your path resolves to /opt/homebrew/Cellar/dart/3.0.7/libexec/bin/dart, which is not inside your current
Flutter SDK checkout at /Users/alvarobarros/fvm/versions/3.10.6. Consider adding /Users/alvarobarros/fvm/versions/3.10.6/bin to
the front of your path.
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision f468f3366c (8 weeks ago), 2023-07-12 15:19:05 -0700
• Engine revision cdbeda788a
• Dart version 3.0.6
• DevTools version 2.23.1
• If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform
update checks and upgrades.
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at /Users/alvarobarros/Library/Android/sdk
• Platform android-34, build-tools 34.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.3.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14E300c
• CocoaPods version 1.12.1
[✗] Chrome - develop for the web (Cannot find Chrome executable at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Android Studio (version 2022.3)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
[✓] VS Code (version 1.81.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.70.0
[✓] Connected device (2 available)
• iPhone 14 Pro (mobile) • CB35362B-3FC7-49E1-9A48-F4BC55ADAD67 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-4
(simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 13.0 22A8380 darwin-arm64
[✓] Network resources
• All expected network resources are available.
I'm using fvm to manage different Flutter versions, but I have other people on my team that got this issue without FVM.
I have created a repo for this issue. It contains a simple Flutter counter hello world app, and a simple iOS Xcode project in which opens the FlutterEngine.
If is there any more info needed, please let me know.
Thanks in advance!