Revert project from 3 back to 2.6

Unity Engine
1

Hi all,

I downloaded the Unity3 trial and installed it, then opened one of my older projects. A message was displayed saying the project is old and needs to be updated, so I clicked yes. After a few minutes the project opened up.

I didn’t make any changes to the project, just opened it, built and ran the game to play it. Now I want to downgrade the project back to 2.6. I tried to open it in 2.6 and it did preset a message that the file is old and needs to be updated, so again I clicked yes hoping that it would revert back to the older version. Instead it just opened an empty scene with nothing inside it.

Is there a way to properly revert back to 2.6?

Thanks for the help,
Puppeteer

2

I don’t think reverting to an older version is possible for a project. When it updates it for a newer version, it not only makes changes to certain files (to make them work with U3), but I’m sure it’ll make changes to the Library files and so on too.

You could do it by hand, but you’re probably better off just restoring a backup or sticking with U3 now.

3

I figured it would be something like that…

…they should put a motto for unity:

“Once you go U3, you can never go back :smile:”

Thanks anyway!

4

I managed to successfully downgrade a 3.0 project to 2.6.

I’m not sure any more how I did it exactly, but I think I overwrote the cache and metadata folders by the ones from an older version of the same project (when it was still a 2.6 project), and then did a ‘Reimport all assets’ in Unity 2.6.

I’m using SVN for versioning. I’m not sure if it would be possible to get all the files from the 2.6 project if you’re using the asset server.