Engine run configuration was invalid. #20777
Description
I am trying to integrate flutter module inside existing iOS and Android app. For the Android, it is working fine. I am following steps from https://github.com/flutter/flutter/wiki/Add-Flutter-to-existing-apps. But for iOS app When I try to push FlutterViewController I get the following error.
Logs
[VERBOSE-2:engine.cc(112)] Engine run configuration was invalid.
[VERBOSE-2:FlutterViewController.mm(411)] FlutterViewController.mm(411)] Could not launch engine with configuration.
Following is the code that I am using to push flutter view controller
@IBAction func onClickButton(_ sender: Any) {
print("Tapped on Button");
let flutterViewController = FlutterViewController()
navigationController?.pushViewController(flutterViewController, animated: false)
}
an output of running flutter doctor -v
[✓] Flutter (Channel master, v0.5.9-pre.79, on Mac OS X 10.13.6 17G65, locale en-IN)
• Flutter version 0.5.9-pre.79 at /Users/shivamgosavi/flutter
• Framework revision 3a4ae280e3 (5 hours ago), 2018-08-17 15:02:39 -0700
• Engine revision 4ee648914f
• Dart version 2.1.0-dev.0.0.flutter-be6309690f
[✓] Android toolchain - develop for Android devices (Android SDK 28.0.2)
• Android SDK at /Users/shivamgosavi/Library/Android/sdk
• Android NDK at /Users/shivamgosavi/Library/Android/sdk/ndk-bundle
• Platform android-28, build-tools 28.0.2
• ANDROID_HOME = /Users/shivamgosavi/Library/Android/sdk
• 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-1024-b01)
• All Android licenses accepted.
[✓] iOS toolchain - develop for iOS devices (Xcode 9.4.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 9.4.1, Build version 9F2000
• ios-deploy 1.9.2
• CocoaPods version 1.5.3
[✓] Android Studio (version 3.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 26.0.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
[✓] IntelliJ IDEA Community Edition (version 2017.2.6)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin version 21.2.2
• Dart plugin version 172.4343.25
[✓] Connected devices (1 available)
• iPhone 8 Plus • 0822DE18-6632-4F22-93F3-46770C82A247 • ios • iOS 11.4 (simulator)
• No issues found!
Please let me know If I am missing anything. And also please update the doc for integrating flutter into existing swift app, currently, the doc is only about ObjectiveC.