Project Assets and Unreal Engine Versions [Help!]

Development Programming & Scripting C++
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1

Hello, so I’ve made a big mistake and I pulled the latest UE engine source from Github when all I wanted was just 4.15.1. I installed and built it then opened my project and noticed that the version said 4.16.0. I didn’t realize until too late that this was a problem, a very big problem. I’m working with a partner and he has 4.15.1 installed, and now it’s giving him all kinds of errors about maps being saved in a later version as well as Blueprint assets not showing up in the project. I’ve been trying all day to get this fixed, but no luck. No matter what I do, even a migrate… it won’t show up in the earlier version project.

Is there anything I can do to trick my assets to think that they weren’t saved in a later version? Otherwise I’m not sure what can be done about this. Is my project permanently stuck on this version?

Some info:

I am using version control, but I did about a weeks worth of work before realizing the mistake. So any work done after I started using this version will be lost.

Is it worth it to take the hit on this and just go back to before the mistake?

2

No game engine on this world that I know of is backwards compatible, sorry.
Maps are binary files so it’s even harder to recover your files when modified by unknown engine version (4.16).

3

Yes, I did figure that. It was more of a desperate cry for help! Maybe someone knew a way to handle it, but it’s very unlikely.

Luckily It didn’t go too far before I realized what was happening. I’ll do the revert and clear this mess up! thanks.