Ionic add platform ios error

Ionic Framework ionic-v3
1

Trying to build ios version. Running:

ionic platform add ios / cordova platform add ios return:

Using cordova-fetch for cordova-ios@~4.4.0
Error: Failed to fetch platform cordova-ios@~4.4.0
Probably this is either a connection problem, or platform spec is incorrect.

Error: Cannot find module ‘buffer-shims’

Ionic info:
Cordova CLI: 7.0.1
Ionic Framework Version: 2.0.1
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
ios-deploy version: Not installed
ios-sim version: Not installed
OS: OS X Yosemite
Node Version: v8.0.0
Xcode version: Not installed

In other forums people talked about run: rm -rf ~/.cordova but didnt solve my error.

Thanks!

2

Out of curiousity, why run cordova platform add ios ?
ionic platform add ios works on its own

3

Only run cordova platform add ios to see if the return was the same from ionic platform add ios

4

Anyone that solved this error ?

5

I am able to solve this problem by calling npm install buffer-shims on the project directory.