Why i can't add IOS platform for my IONIC app

I have an IONIC 5 app, and I want to build my ios app in my mac

I use OS 10.15.4

I tape this

ionic Cordova platform add ios

but this error show's up

Failed to install 'card.io.cordova.mobilesdk': CordovaError: Uh oh!

I really installed " card.io plug-in for Cordova " by tapping this

npm I card.io.cordova.mobilesdk 

and

npm install @ionic-native/card-io

bu I steel the same error, any solutions ??