Thanks @Kevin.Herron, that gets me a little farther but I’m still stuck:
I can now get to the Open/Create Project dialog, but when I try to either open an existing project or create a new one, I get this error:
(I also get about 10 to 13 errors like Hook class "com.inductiveautomation.symfact.designer.SymbolFactoryDesignerHook" not found for module "Symbol Factory" but I’m able to ignore those to get to the Open/Create Project dialog.)