Two jQueries Installed

I have an app that is basically a direct copy of a previous app, aside from a few new installed package, like npm tokbox. Of course a few others. It now seems like a bunch of the jQuery functionally that works on one repo doesn’t work on the other. Things like Materialize modals, and some other stuff. I’ve seen in a few places this specific error, and this suggestion, but how do I check if JQuery is being called twice? I suppose I have to go through Meteor package manager and npm?