title: Not able to run flutter app on iOS Simulator
body: <p>I am not able to run my flutter app on iOS Simulator. It is giving me this error :</p>
  
  <p>Launching lib/main.dart on iPhone XR in debug mode...
  Starting Xcode build...
  Xcode build done.                                            7.9s
  Failed to build iOS app
  Error output from Xcode build:
  ↳
      ** BUILD FAILED **</p>
  
  <p>Xcode's output:
  ↳
      === BUILD TARGET url_launcher OF PROJECT Pods WITH CONFIGURATION Debug ===
      /Users/snehal/.pub-cache/hosted/pub.dartlang.org/simple_permissions-0.1.9/ios/Classes/SwiftSimplePermissionsPlugin.swift:51:38: error: 'UIApplicationOpenSettingsURLString' has been renamed to 'UIApplication.openSettingsURLString'
                  if let url = URL(string: UIApplicationOpenSettingsURLString) {
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                           UIApplication.openSettingsURLString
      UIKit.UIApplicationOpenSettingsURLString:3:12: note: 'UIApplicationOpenSettingsURLString' was obsoleted in Swift 4.2
      public let UIApplicationOpenSettingsURLString: String
                 ^</p>
  
  <p>Could not build the application for the simulator.
  Error launching application on iPhone XR.</p>
  
  <p>Please Help. Thanks in advance :)</p>
  
  <p>I want to run my app on iOS Simulator.</p>