How do I fix pod problem when exporting to xcode?

Hello,

I try to create a ios game but I'm confronted to the usual missing pod problem in xCode.

I saw dicussions* on the forum but I didn't manage to get it all. Maybe because the whole process in not clearly explained from a beginner's point of view.

Could someone explain how to do it form the beginning, from ruby installation with the Terminal, to the "install pod" instruction ?

The user Chadori seemed to get the all process right. Would them give us all a dearly needed tutorial ?

thanks

*here for example :

construct.net/en/forum/construct-3/how-do-i-8/unsupported-swift-version-175969