Converting to UE5: Our 4.27 Project Cannot Be Opened Once Updated

Development Getting Started & Setup
, , , , ,
1

Hello everyone!

After going to the Unreal Fest Expo, we were motivated to update our project to UE5 before launch to take advantage of a lot of features we could use to polish the final project. However, we have been unable to successfully update our project from 4.27 to 5.0 and are seeking aid from the community.

Our project has had all non-UE5 plugins disabled, and the C++ successfully compiles. However when we attempt to open it in the editor, the program crashes. Included below are our errors and stack overflows, and we are sort of stumped on what is causing our failure to update to UE5.

ue5_exception
ue5_exception2560×1403 323 KB

ue5_callStack.txt (11.3 KB)
ue5_errorLog.txt (237.0 KB)

Thanks a bunch everyone! Also the Unreal Devs kept mentioning we could post questions to them on a specific forum… is that just here or is there a Dev forum we have to sign up for?

2

So we ended up figuring this out and updating to UE5.

We removed a lot of hard references which reduced our errors until we found an open reference in one of our BPs that was crashing the engine.