ionic cordova plugin add phonegap-plugin-push --variable SENDER_ID="************" 1) push notification installation in ios project 2)before install push plugin install cocoapods ->sudo gem install cocoapods cordova platform rm ios cordova platform add ios Inside platforms/ios install pod install --verbose 3) Add FirebaseAppDelegateProxyEnabled type "Boolean" value "NO" in your info.plist. 4) some times push notifications permissions not allowed that time you can install plugin errors like ([Firebase/Core][I-COR000003] The default Firebase app has not yet been configured. Add `[FIRApp configure];` (`FirebaseApp.configure()` in Swift) to your application initialization. Read more: https://goo.gl/ctyzm8.2020-01-28 14:20:39.689416+0530 [Firebase/Analytics][I-ACS023007] Firebase Analytics v.40200000 started2020-01-28 14:20:39.692838+0530 [Firebase/Analytics][I-ACS023008] To enable debug logging set th...