Unity 2017.2 Crashing When I Re-Import Old Version Project

I just updated to Unity 2017.2, and when I try to re-import my old project, Unity crashes when resolving packages. Has anyone else had this problem? If so, have you found a solution? Thanks in advance!

Hi bmstclair, did you find the solution?

Unfortunately, no. I even downloaded the latest patch released yesterday, and it’s still doing it.

This is very weird. I re-imported a project that is quite advanced with lots of assets, scripts and stuff like that without any problems. Today I tried to open a project that was just a prototype, with unity’s standard prototype assets and 2 scripts with very simple code and it crashes… Both those projects were created in the same Unity version.

edit: I’m using macOS High Sierra by the way, if that helps finding the problem

— Update (doesn’t work for every project, read the answer below) —
Guys, I think I figured it out. Have any of you used one of Unity’s standard assets? Unity seems to be having trouble to convert the scripts inside early versions of the standard assets to new projects… Just delete the Standard Assets folder and add them again manually later. It worked here.

I tried that, but it didn’t help. I’ve been trying every patch that comes out, but can’t get it to work. I’m at a loss here.