Hi everyonbe
I am trying to open the file this morning and i have this error :
Failed to load map!
F:/Unreal/Project/CPLG_1/Content/FirstPersonBP/Maps/FirstPersonExampleMap.umap is a UE4 map [File:v504], from an engine release newer than this [Cur:v482].
Any idea how to solve it?
Thank you
Hi,
could it be that you edited this map with a newer version of UE and are now trying to open it with an older version? Unfortunately this is not possible, since the .uasset and .umap files are not downwards compatible.
So, just try to open with a newer engine version and it should work.
Hi
as you suggested i opened the file whit the latest version.
Unreal created a copy of the project and it opened it .
All my imported meshes are in the content folder, same for materials and blueprints but they aren’t in the viewport neither in the “worldOutliner” toolbar .
Have i lost my job ?
Ok, so it could at least open it now; You say that your map is basically empty now, right?
What you could try to do is to open up a previous version of your map, so you at least didnt loose everything. There should be some autosaves of your map in your \Saved\ , there should be some of them in there (that effectively means, take one of the map files in there and copy it to your content folder, otherwise you wouldnt be able to open it easily).
This if course should also enable you to open the map again with a previous version of UE.
Good luck!
Thank you so much .
Copied one autosave file in Content\FirstPersonBP\Maps, rename the file and it works .
Great .
again, thank you .
If i could help you, please consider accepting my answer (so it is no longer marked as “unanswered”) 
Cheers,
thnaks specchio i renamed the map and it works , u saved my life