Error installing Onesignal plugin on iOS platform using IONIC FRAMEWORK

Question

I’m developing an app using Ionic framework, but when adding the Onesignal plugin on iOS platform I’m having some errors:

"Failed to install 'onesignal-Cordova-plugin': Undefined (Node:3302) Unhandledpromiserejectionwarning: Unhandled Promise rejection (rejection id: 1): Version should contain only Numbers and Dots"

I’ve already made some commands like:

sudo gem install cocoapods
prod repo update

But I didn’t succeed.

Someone would have some hint of what I should do to install Onesignal?

Answer 1

Try to do these procedures

cordova platform remove ios
cordova platform remove onesignal-cordova-plugin
sudo gem install cocoapods
pod repo update
pod setup (caso precise sincronizar o repositório CocoaPods)
cordova plugin add onesignal-cordova-plugin --save
cordova platform add ios