error when rebuilding

[tender mountain]

I get this error in visual studios.
how do i fix it?

[novel plume]

Hi MILK CAT, the function OnLevelRemovedFromWorld is no longer valid to use with UE 5.1. Use NativeDestruct() instead.

void UOverheadWidget::NativeDestruct()
{
    RemoveFromParent();
    Super::NativeDestruct();
}

[tender mountain]

what do i do with these errors

[tender mountain]

i uploaded the project if you could help
https://drive.google.com/file/d/19yMns6yA-gKnAo_jMw9GKKxZSKwMrqs4/view?usp=share_link

[quick hill]

This error is simply caused by the fact you either declared that function in the header (.h) and didn't define it in the cpp or you defined it in the cpp and didn't declare it in the header. All those other "errors" are a result of IntelliSense having personal issues and aren't actual errors. If you look in the top right of your error log there, you'll see a drop down that says Build + IntelliSense change it to Build Only

[tender mountain]

i changed them both

@quick hill

[glad carbon]

Hey, they meant like this: 🙂

you can't declare a function inside another function, you need to delete OnLevelRemovedFromWorld() completely and replace it with NativeDestruct() 🙂

[tender mountain]

can i get the does for those?

so i have to change every OnLevelRemovedFromWorld() to NativeDestruct()

[glad carbon]

yes 🙂 although I only remember using it this one time in Menu

I have OnLevelRemovedFromWorld in OverheadWidget.cpp, but it's completely empty and not being used, so that doesn't matter, it can probably just get deleted 🙂

[tender mountain]

so do i replace virtual void OnLevelRemovedFromWorld(ULevel* InLevel, UWorld* InWorld) override; with void UOverheadWidget::NativeDestruct()
{
RemoveFromParent();
Super::NativeDestruct();
}

in both .h and .cpp?

[glad carbon]

if you have functionality in your OnLevelRemovedFromWorld function then yeah absolutely, but if it's empty then you don't need to 🙂

the .h file only needs the declaration too, so just virtual void UOverheadWidget::NativeDestruct() override;

[tender mountain]

so after i replace that in .h i replace OnLevelRemovedFromWorld() with NativeDestruct() in .cpp? or do i need to change something else in .cpp

[glad carbon]

yeah replace it in cpp as well, you can't have a function in the cpp file if it isn't also in the .h file, so leaving it will give an error 🙂

[tender mountain]

okay sp in .cpp i replace void UMenu::OnLevelRemovedFromWorld(ULevel* InLevel, UWorld* InWorld)
{
MenuTearDown();
Super::OnLevelRemovedFromWorld(InLevel, InWorld);
}

with virtual void UOverheadWidget::NativeDestruct() override;

[glad carbon]

has to be the same class name so not UOverheadWidget, use UMenu

[glad carbon]

this is the code you need here 🙂

void UMenu::NativeDestruct()
{
    RemoveFromParent();
    Super::NativeDestruct();
}

[tender mountain]

so this is still an error

[glad carbon]

the .h file should just be virtual void NativeDestruct() override;

[quick hill]

Well yes because it's virtual void NativeDestruct() override;

Lol Jodie beat me to it 😂

[glad carbon]

speed typing 😂

[quick hill]

@tender mountain Also you need to go into UOverheadWidget and change it there aswell

[glad carbon]

that one is odd, I still have onlevelremoved (etc) but the function is empty, so it doesn't throw any errors at me lol

[quick hill]

That's odd right there. I mean as long as it doesn't have override or call the Super it's totally fine

[tender mountain]

this should also be virtual void NativeDestruct() override;

@quick hill

[quick hill]

Yes correct. That function in your screenshot no longer exists in UE5.x.x

[glad carbon]

yeah I assumed as it's totally empty that it just skips past it, I might just delete it tbh as it isn't used lol

[quick hill]

Yeah lol if it's totally empty it skips it, well in this case it does 😂

[tender mountain]

now i have these new errors after those

@glad carbon

[quick hill]

Right because once more you defined the function but didn't declare it.

[tender mountain]

where do i do that?

[glad carbon]

in the cpp file exactly like you did in the menu

[quick hill]

And in the header (.h)

[tender mountain]

so what do i replace with what?

[glad carbon]

where have you put NativeDestruct in the overhead widget class?

[tender mountain]

i removed it from overheadwidget.cpp

[glad carbon]

the error says you have it somewhere in the overhead widget, either the cpp or h file, or that you are calling UOverheadWidget::NativeDestruct() somewhere

[quick hill]

In the .h you should have this virtual void NativeDestruct() override; in the cpp you should have this void OverheadWidget::NavtiveDestruct() {}

[tender mountain]

found it, no errors now

[quick hill]

🥳

[glad carbon]

good job 😊

[tender mountain]

now i rebuild? and i should be able to open in ue?

[quick hill]

Just hit F5

[glad carbon]

yeah if there's no errors you should be fine 🙂

🤞

[quick hill]

Lol that too

[tender mountain]

you guys are the best! now i can start going through the course making everything lines up and add my character to it

[quick hill]

🥳

[glad carbon]

awesome! have fun!

[tender mountain]

does it come with the level from the video?

[glad carbon]

if you have downloaded the project then yes, if not you'll need to make your own levels 🙂

[tender mountain]

i downloaded it, when i open the project im on an island

[glad carbon]

so there should be a map called BlasterMap, that'll be the level Stephen designed 🙂

[quick hill]

Also you always just create your own map, or even just use an empty level

[tender mountain]

where do i find the map? i plan on creating my own but would like to test

[glad carbon]

in the content folder, there should be a folder called maps 🙂

[tender mountain]

oh i see so how can i change the map in ue?

[glad carbon]

just double click to open it 🙂

[tender mountain]

in ue? i dont see it

[tender mountain]

oh i see! my character doesnt move for some reason

i got it now

[tender mountain]

when i create a session is says it failed to create one

[glad carbon]

okay you're having the same issue as someone else now, must be something to do with downloading the project. you'll have to bare with me while I try to figure it out 🙂

[tender mountain]

thank you, let me know what yall figure out. i set players to 1 and it said that but didnt take me to the game map. is that cause it didnt create a session?

[glad carbon]

yeah if it fails to create the session, it can't transport you anywhere

not sure why it's failing for both of you though

[tender mountain]

thats odd, do i need to put the 5.1 plug in in the plug ins folder? like replace it maybe?

[glad carbon]

if you're willing to give it a try, I would save the current one somewhere in case it goes wrong

[tender mountain]

I tried it and it didn’t work

[glad carbon]

double check your code contains all of the info that Stephen mentions in the pinned message at the top of the forum

https://discord.com/channels/807733033192390676/1070112832244424705

[tender mountain]

i dont even see [OnlineSubsystemSteam]:
bInitServerOnClient=true in the ini

[glad carbon]

aha

you need to add that then 🙂

[tender mountain]

i cant find CreateSession

what createsession do i find
if (!SessionInterface.IsValid())
{
return;
}

@quick hill

[quick hill]

Uh beats me. I don't know anything about multiplayer

[tender mountain]

who would know?

[quick hill]

Idk m80, just be patient and I'm sure someone will see this thread

[glad carbon]

did you add the code to your ini file? @tender mountain

[tender mountain]

Which code?

[glad carbon]

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480
bInitServerOnClient=true

[tender mountain]

Which ini does that go in? Sorry I’m not at my pc atm

[glad carbon]

defaultengine.ini

[tender mountain]

Okay I’ll try that in the morning. Anything else I need to add or change? Did it start working for the other person?

[glad carbon]

the other guy was having a different issue in the end, we'll see if adding the code to the ini file works first and go from there 🙂

[tender mountain]

Okay thank you. I’ll ping you when I gave it a shot. Trying to get everything working before I start customizing everything 😊

[glad carbon]

yeah absolutely! yeah let me know and we'll keep trying if not 🙂

[tender mountain]

Also off topic of multiplayer. Does each team have different characters? Or has someone implemented character choices?

[glad carbon]

no we use the same character but change the colour of their outfit to red or blue

[tender mountain]

i put the code in and still cant create server

[glad carbon]

did you regenerate files after adding it? 🙂

[tender mountain]

yup

[glad carbon]

okay send over the multiplayersubsystem code

[glad carbon]

and the cpp file please

[glad carbon]

and can you send the menu cpp file please

when you click HOST, does it send you to the lobby or are you still on the menu screen?

[tender mountain]

the menu goes away and my character stands on the island

[glad carbon]

okay and can you move around etc

[tender mountain]

Not on the island no. I’m the game level I can

[glad carbon]

can you send me a screenshot of after you click host please

to be able to move after clicking host, you need to change this code:

void UMenu::NativeDestruct()
{
    RemoveFromParent();
    Super::NativeDestruct();
}

to this:

void UMenu::NativeDestruct()
{
    MenuTearDown();
    Super::NativeDestruct();
}

please let me know if this works.

[tender mountain]

i changed it in menu.cpp but no movement on the island

[glad carbon]

did you hard compile with the editor closed? 🙂

this is what I fixed with the other guy lol

[tender mountain]

how you do that?

[glad carbon]

close unreal engine, then in visual studio, press CTRL + F5

it will compile and relaunch the engine

[formal dust]

You said you can't create the session, but are you trying to do that in the PIE or are you trying it from the packaged game?

[glad carbon]

also yes, you will always get Failed To Create Session whilst pressing play within the editor, it will only create a session if you package the game and open the exe. file, or right click your project and press launch game

[tender mountain]

he can move now.
im trying from the editer, how do i make an exe?

[glad carbon]

you click platforms at the top, click Windows (if you are using a windows machine), click Development and then click Package Project

this will then make a new folder with an exe. file which you double click to open and can play

you MUST be logged into Steam for a session to be created

[formal dust]

is this the first C++ course you take?

[tender mountain]

it seemed like it worked, i clicked hose and no error but was stuck on the island and couldnt exit. I though when you were waiting you had free cam in the game level?

[glad carbon]

if you are testing on your own, put a 1 in the number of players box in the menu, then click host

[tender mountain]

yup seems to work, even steam says invite your friends to play. wonder if theres a way to make a server list

[glad carbon]

that's definitely beyond my knowledge!

glad you're all fixed now 👍

[tender mountain]

thank you, mind if add you as a friend incase i need more help? you helped so much i appreciate it

[glad carbon]

of course not, go ahead 🙂