Swift MessageKit issues

Question

Here to show the image after installing MessageKit and the problems I am currently having with it. Maybe it's my pod file that is the problem but the MessageKit has issues in it. It looks like inside the MessageKit pod file some code needs to be updates from what it is showing me in Xcode after trying to build it. I have been cleaning and building my project. My project was working before installing MessageKit.

 pod 'Firebase'
 pod 'Firebase/Core'
 pod 'Firebase/Auth'
 pod 'Firebase/Storage'
 pod 'Firebase/Database'
 pod 'Firebase/Messaging'
 pod 'Firebase/Crash'
 pod 'GoogleSignIn'
 pod 'Bolts'
 pod 'FBSDKCoreKit'
 pod 'FBSDKLoginKit'
 pod 'FBSDKShareKit'
 pod 'TwitterKit'
 pod 'TwitterCore'
 pod 'SnapKit'
 pod 'Alamofire'
 pod 'SwiftyJSON'
 pod 'SDWebImage'
 pod 'UIActivityIndicator-for-SDWebImage'
 pod 'SVProgressHUD'
 pod 'SWRevealViewController'
 pod 'IQKeyboardManagerSwift'
 pod 'IGListKit'
 pod 'InstagramKit/UICKeyChainStore'
 pod 'InstagramKit'
 pod 'Reusable'
 pod 'OAuthSwift'
 pod 'AFNetworking'
 pod 'MBProgressHUD'
 pod 'Fabric'
 pod 'Crashlytics'
 pod 'OneSignal'
 pod 'BottomPopup'
 pod 'Kingfisher'
 pod 'MessageKit'
pod 'Firebase/Firestore'
post_install do |installer|
  installer.pods_project.targets.each do |target|
      if target.name == 'MessageKit'
          target.build_configurations.each do |config|
              config.build_settings['SWIFT_VERSION'] = '4.0'
          end
      end
   end
   end

end

target 'OneSignalNotificationServiceExtension' do
use_frameworks!
pod 'OneSignal'
end

Answer 1

You using the latest version of MessageKit which is 2.0. This version is only compatible with Swift 4.2

So if you use Swift 4.2 remove this

post_install do |installer|
  installer.pods_project.targets.each do |target|
      if target.name == 'MessageKit'
          target.build_configurations.each do |config|
              config.build_settings['SWIFT_VERSION'] = '4.0'
          end
      end
   end
end

If use MessageKit with Swift 4.0 or 3.0 you need to use the version 1.0 of MessageKit. So your pod file would be like that

pod 'MessageKit', '~> 1.0.0'

I hope it solve your problem