can't build IOS - flutter

Question

I encounter this error when i try to build for ios, i tried every solution i could find online
Failed to build iOS app
Error output from Xcode build:
↳
** BUILD FAILED **
Xcode's output:
↳
In file included from
/Users/ahmedaly/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher_ios-6.0.13/ios/Classes/FLTURLLauncherPlugin.m:7:
/Users/ahmedaly/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher_ios-6.0.13/ios/Classes/FLTURLLauncherPlugin.h:5:9: fatal
error: 'Flutter/Flutter.h' file not found
#import <Flutter/Flutter.h>
^~~~~~~~~~~~~~~~~~~
1 error generated.
note: Using new build system
note: Planning
note: Build preparation complete
note: Building targets in parallel
Encountered error while building for device.
example of the things i tried:
pod deintegrate
rm podfile.lock
rm pubspec.lock
flutter clean
flutter run
and just about anything similar you could immagine
i also tried removing the file from the path indicated and removing the dependency from pubspec.yaml but it didn’t work
flutter doctor output :
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.8.0, on macOS 11.6 20G165 darwin-x64, locale
en-GB)
[✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 13.0)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] IntelliJ IDEA Community Edition (version 2021.2.3)
[✓] VS Code (version 1.63.0)
[✓] Connected device (2 available)
• No issues found!

Answer 1

I found a solution in another question on Stack!
Backup ios/Runner folder.
Delete the ios folder.
Run flutter create (your project name). in the previous folder where you have your project(cd users/user/"projects_folder")
(this will recreate your ios folder).
Paste your Runner backup in the ios folder (into the project).
Open Runner.xcworkspace (into ios folder) and there, check the Version, the Bundle ID, all the info.
(If do you Have Firebase, you have to copy and paste again the Google Service-Info.Plist into the Runner folder (Always through Xcode) (If do you do this manually, it doesn't work).
Finally, flutter run and should work!
If flutter run fails:
cd ios
pod install
cd ..
flutter run