Project incompatible, new versions of Unity required!??

Hello

I need some help! I have just started to work with Unity and I have a big problem. I get this message when I open my projects:

Project incompatible, new versions of Unity required!??

I am using Unity at my home and as well at my work place, and since I got the last update of the program, this problem appeared? I have installed the same version at both places so that shouldn’t be the problem. I have used Dropbox as my working folder, but since the problem occurred I started to copy the project folder unto a USB drive. This doesn’t help either. :frowning:

Anyone know this problem, and hove to fix it?

You probably installed the beta on one of them.

I will look into this as soon as possible - I really hope this is the problem - Thanks m8