iOS build issue

[imdarpn]

while creating iOS build that time getting errors as belows:

Xcode's output: ↳ /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:1: error: expected 'func' keyword in operator function declaration - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^ func /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:4: error: unnamed parameters must be written with the empty name '_' - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^ _: /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:9: error: consecutive declarations on a line must be separated by ';' - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^ ; /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:9: error: expected declaration - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^ /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:6:13: note: in declaration of 'AppDelegate' @objc class AppDelegate: FlutterAppDelegate { ^ /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:4: error: cannot find type 'BOOL' in scope; did you mean to use 'ObjCBool'? - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^~~~ ObjCBool /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:1: error: operator '-' declared in type 'AppDelegate' must be 'static' - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^ static /Users/home/AndroidStudioProjects/filos-app/ios/Runner/AppDelegate.swift:21:1: error: prefix unary operator missing 'prefix' modifier - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ ^