Release iOS build: VM snapshot must be valid #24641
Description
Our iOS application starts with a white screen on initial launch and is stuck in that state until you kill and relaunch the application, After that the application runs normally. There are many other report on this that have been closed so I wanted to include foolproof steps to reproduce this from a blank template application. This issue is not related to any specific package but manifests itself when installing any new package and build in release mode.
Steps to Reproduce
1: $>flutter create flutter_vm_crash
2: $>cd flutter_vm_crash
3: $>open ios/Runner.xcworkspace/
4: in Xcode > Set Bundle Identifier and Signing Team
5: plug in iPhone
6: flutter run --release; app starts up normally
7: in Xcode > clean project > run app from xcode; app still runs normally
8: $>open pubspec.yaml > add an additional dependency, I added device_info package
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
device_info: ^0.3.0`9: $>flutter packages get
10: $>flutter run --release; app starts up normally
11: in Xcode > clean project > run app from xcode
12: White screen appears with VM snapshot must be valid. log
13: in Xcode > Re run the application, app starts up normally
14: repeat step 11: > clean project > run app from xcode and white screen appears again
Logs
Runner[39545:15296040] [VERBOSE-2:dart_vm.cc(259)] VM snapshot must be valid.
Runner[39545:15296040] [VERBOSE-3:shell.cc(212)] Check failed: vm. Must be able to initialize the VM.
flutter analyze
Analyzing flutter_vm_crash...
No issues found! (ran in 4.7s)
flutter doctor -v
[✓] Flutter (Channel beta, v0.11.8, on Mac OS X 10.13.6 17G65, locale en-US)
• Flutter version 0.11.8 at /Users/martin/Documents/Repos/flutter
• Framework revision f5b02e3c05 (34 hours ago), 2018-11-20 07:49:29 -0800
• Engine revision 1baf081343
• Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)
[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
• Android SDK at /Users/martin/Library/Android/sdk
• Android NDK at /Users/martin/Library/Android/sdk/ndk-bundle
• Platform android-28, build-tools 27.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.
[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.1, Build version 10B61
• ios-deploy 1.9.4
• CocoaPods version 1.5.3
[✓] Android Studio (version 3.2)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 25.0.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
[✓] VS Code (version 1.28.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 2.20.0
[✓] Connected device (1 available)
• mydevice • number • ios • iOS 11.3
• No issues found!