Cannot read property 'get' of undefined after upgrade to 4

[hscheckenbacher-ambifi]

I've recently upgraded from 3.X to 4.0.2 and noticed that the tree no longer is defined when using Proptypes, so trying to access this.context.tree returns undefined.

I'm looking to upgrade to take advantage of the new Hooks approach. Any thoughts on what might be going on?

Thanks!

[Yomguithereal]

Hello @hscheckenbacher-ambifi. Can you provide me with a reproducible example. I don't really know how to help you without.