There is my problem: I'm using the [share package][1] from pub.dev, and when I am trying to build my app, I got the following error:
/Users/yazan/Desktop/flutter/.pub-cache/hosted/pub.dartlang.org/share-0.6.5+4/ios/Classes/FLTSharePlugin.h:5:9: fatal error: 'Flutter/Flutter.h' file not found
#import <Flutter/Flutter.h>
^~~~~~~~~~~~~~~~~~~
1 error generated.
In file included from /Users/yazan/Desktop/flutter/.pub-cache/hosted/pub.dartlang.org/shared_preferences-2.0.5/ios/Classes/FLTSharedPreferencesPlugin.m:5:
/Users/yazan/Desktop/flutter/.pub-cache/hosted/pub.dartlang.org/shared_preferences-2.0.5/ios/Classes/FLTSharedPreferencesPlugin.h:5:9: fatal error: 'Flutter/Flutter.h' file not found
#import <Flutter/Flutter.h>
^~~~~~~~~~~~~~~~~~~
1 error generated.
In file included from /Users/yazan/Desktop/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher-6.0.3/ios/Classes/FLTURLLauncherPlugin.m:7:
/Users/yazan/Desktop/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher-6.0.3/ios/Classes/FLTURLLauncherPlugin.h:5:9: fatal error: 'Flutter/Flutter.h' file not found
#import <Flutter/Flutter.h>
^~~~~~~~~~~~~~~~~~~ ```
[1]: https://pub.dev/packages/share
