Use of undeclared identifier 'FIRAnalyticsConfiguration'

Hi

I was trying to build ios with ionic, but I’m stuck with an error in the title and is there anyone who knows the solution without a solution or reference material anywhere?

ionic info

Ionic:

   ionic (Ionic CLI)  : 4.8.0 (/Users/username/.nodebrew/node/v8.11.3/lib/node_modules/ionic)
   Ionic Framework    : ionic-angular 3.9.2
   @ionic/app-scripts : 3.2.3

Cordova:

   cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
   Cordova Platforms     : ios 4.5.5
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.3.2, (and 25 other plugins)


thanks

did you manage to solve this ? I have the same problem