fix ios

ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-platform :ios, '12.0'
+platform :ios, '14.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

ios/Runner/AppDelegate.swift

@@ -13,6 +13,10 @@ import UniformTypeIdentifiers
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
 
+    guard let controller = window?.rootViewController as? FlutterViewController else {
+          fatalError("rootViewController is not of type FlutterViewController")
+    }
+
     let methodChannel = FlutterMethodChannel(name: "venera/method_channel", binaryMessenger: controller.binaryMessenger)
     methodChannel.setMethodCallHandler { (call, result) in
       if call.method == "getProxy" {