What does this warning mean, when packaging a project on a Mac?

Development Platform & Builds Debugging, Optimization, & Profiling
1

I assume this is no big deal, but it would be good to know what this means and if it can be rectified.

I think this has to do with the Touch Bar at the top of MacBooks:

PackagingResults: Warning: Expected min height of view: (<NSPopoverTouchBarItemButton: 0x7fada539c5f0>) to be less than or equal to 30 but got a height of 32.000000. This error will be logged once per view in violation.

2

Also interested in this question!