It seems some modules were not installed by you properly .
Please try installing googleplus :
ionic cordova plugin add cordova-plugin-googleplus --variable REVERSED_CLIENT_ID=myreversedclientid
npm install --save @ionic-native/google-plus
open terminal navigate to your ionic project and then try running these commands :
npm install --save @ionic-native/[email protected]
ionic cordova plugin add [email protected] --variable APP_ID="123456789" --variable APP_NAME="myApplication"