Unkown Error

(I don’t know if this is the correct section,if it isn’t transfer the post.)

Hello Community,
I need some help troubleshooting this error.

I get this error when i travel between maps.

I also tried packaging the project.

And this happened.

Help is much appreciated. Thanks.

Vipulul,

I assume you already have the recommended specs to run UE4, (A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums)

In the Epic Launcher try going to the drop down arrow next to the launch button and selecting verify. I would also back up your project folder to an external device just in case.

What is your blueprint for traveling between worlds look like?

That’s the blueprint for travelling between worlds,and,don’t worry about the specs im good with those.I’ve verified and still the same problem.

If its any good. i used this tutorial : How to Setup Steam Multiplayer in Unreal Engine 4 Blueprints - Entire Guide - YouTube

Instead of fully packaging your project can you go to File → Cook Contents, and see what the output is. This will still cook the project but leaves out the final packaging. If you see any errors or warnings those should be looked at first.

Also did you natively build this project in 4.14 or upgrade this project to 4.14 from an earlier version?

I built it in 4.9 and tried in 4.14.1 but i want it in 4.14 and im trying to fix the errors,about the errors,none,there are only warnings, do you want me to give you a log ?

Just so I have this right,

you built it in 4.9 and it works perfectly fine, correct? Once you opened it inside 4.14 (essentially upgraded) it no longer worked.

I would start by removing the “Intermediate” and “Saved” folders inside your project folder and reopen your project. They will recreate themselves and try again and see if it crashes.

If it’s still happening create a fresh new project inside 4.14, then open your original project and migrate everything over to the new project contents folder you just made. You might have to re-connect the input mappings for this new project to your character. see…

(Migrating Assets in Unreal Engine | Unreal Engine 5.1 Documentation)

Re-Cook the contents (not package) inside your new project and see if the number of warnings went down, and if so does it crash still after doing this?

Basically if it worked before its going to work again, the thing is just honing down where the problem is.

Doesn’t work in 4.9 either,I’ve cheked it now.On that guy’s tutorial was working no problem,i even downloaded his project and no luck.And yes, i’ve verified the engines. But i saw something when i downloaded his project. When i play start game i go for a split second into the second level and then black screen.I can give you the project if you want to check it.