Errors Launching Flutter app in iOS Simulator
5,796
I had the same issue because of Firebase
.
I fixed my issue by inverting 2 lines in my AppDelegate.swift
file:
FirebaseApp.configure() // Should be first
GeneratedPluginRegistrant.register(with: self) // Should be second
My non working file was this one
import UIKit
import Flutter
import Firebase
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
GeneratedPluginRegistrant.register(with: self) // <- Don't do this
FirebaseApp.configure() // <- Don't do this
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
}
And my working file is:
import UIKit
import Flutter
import Firebase
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
FirebaseApp.configure() // <- Do this
GeneratedPluginRegistrant.register(with: self) // <- Do this
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
}
Author by
Admin
Updated on December 23, 2022Comments
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Admin over 1 year
I am experiencing issues when launching a Flutter app on iOS simulator. The issue seems to be relating to localhost connectivity or such, judging by the below error output, but I am unable to find how to fix it.
I am running MacOS Catalina version 10.15.6 (19G73). iOS simulator version Version 11.6 (921.9.1). VSCode is my IDE.
The app launches and runs fine on the Android simulator counterpart.
Below is the error output from VSCode Terminal:
Launching lib/main.dart on iPhone SE (2nd generation) in debug mode... Running Xcode build... └─Compiling, linking and signing... 6.7s Xcode build done. 16.7s Connecting to the VM Service is taking longer than expected... Still attempting to connect to the VM Service... If you do NOT see the Flutter application running, it might have crashed. The device logs (e.g. from adb or XCode) might have more details. If you do see the Flutter application running on the device, try re-running with --host-vmservice-port to use a specific port known to be available. Exception attempting to connect to the VM Service: SocketException: OS Error: Connection refused, errno = 61, address = 127.0.0.1, port = 51838 This was attempt #50. Will retry in 0:00:01.600000. Exception attempting to connect to the VM Service: SocketException: OS Error: Connection refused, errno = 61, address = 127.0.0.1, port = 51970 This was attempt #100. Will retry in 0:00:01.600000. Exception attempting to connect to the VM Service: SocketException: OS Error: Connection refused, errno = 61, address = 127.0.0.1, port = 52119 This was attempt #150. Will retry in 0:00:01.600000. Exception attempting to connect to the VM Service: SocketException: OS Error: Connection refused, errno = 61, address = 127.0.0.1, port = 52347 This was attempt #200. Will retry in 0:00:01.600000. ^C%
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Carl.G over 3 yearsDude ! Thanks for this.
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Chwizdo over 2 yearsThanks this works for me! Can anyone explain why is this causing the error? Thanks again in advance!
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Harsha Vardhan over 2 yearsIm still getting the same error any idea??
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NoobN3rd about 2 yearsFor me This was another issue as well.