Can not select objects in scene

I also had the problem that I could not select anything in my scene, I tried all the fixes but nothing worked in the end my problem was solved in the Hierarchy at the left side there is an eye and a finger when the finger is pressed you cant move an object and when you press it again you can now select and move again. I hope this helps someone with the same issue. for some unknow reason Unity does strange things when you open projects like making everything unselect able. I think Unity is just keeping our lives interesting by giving us problems to solve.