Creating a new ionic project, an error occurred while running npm i command. I've got a warning indicating "deprecated firstname.lastname@example.org (3.0 config used in other tools)" and "email@example.com (The major version is no longer supported)". I am using ionic 3.19.1.
I would like to know if updating to ionic 4.x is the only solution and, if so, what about the projects I created before with the 3.19 version? Are they going to work all right? How many changes should I make on them?
Thank you very much!