Can't open project in editor. Not listed but others are

Development Programming & Scripting
1

Hello,
My project was ported from UE 4.27 to 5.0.
Now, it’s no longer recognized by the launcher (other projects like Content Examples are).
If I double-click on the project file, I get an error box stating “Failed to launch editor”.
I can still open it by launching Unreal Editor from the launcher or Explorer then open it. I can also open it with UnrealEditor.exe by righ-clicking in explorer, but not using the regular “Unreal Engine” choice.

I can no longer add assets from the marketplace, since it doesn’t appear in Launcher.

Does anyone have a clue ? Thanks you so much !

1 Like
2

Did you by chance set your project to a source build?

3

What do you mean ?

4

If you don’t know what source build is, I’m gonna assume that’s a no.
Have you uninstalled the preview versions and downloaded the release version of UE5?

5

The project contained some C++ in the past, but it was removed. The only code is now in plugins. The engine has been updated from preview to 5.0.0 then 5.0.1 .

6

Magic ! Now it appears in the launcher, even if the error is still there if I click lol. At least I can add assets packs :sweat_smile:.