create session with steam set up fails

Development Platform & Builds
, , , , ,
1

Hello every one,

I’ve been looking for different sources and tutorial to setup my game for steam but I can’t get it to work.
First, my DefaultEngine.ini looks like this:
[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName=“GameNetDriver”,DriverClassName=“OnlineSubsystemSteam.SteamNetDriver”),DriverClassNameFallback=“OnlineSubsystemUtils.IpNetDriver”)

[OnlineSubsystem]
DefaultPlatformService=Steam
PollinIntervallInMs=20

[OnlineSubSystemSteam]
bEnabled=true
SteamDevAppId=480
GameServerQueryPort=27015
bRelaunchInSteam=false
GameVersion=1.0.0.0
bVACEnabled=1
bAllowP2PPacketRelay=true
P2PConnectionTimeout=90

[Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="/Script/OnlineSubsystemSteam.SteamNetConnection"

And in the , I added those lines:

PublicDependencyModuleNames.AddRange(new string[]{..."OnlineSubsystem","OnlineSubsystemUtils"});

DynamicallyLoadedModuleNames.Add("OnlineSubsystemSteam");

If I’m using the setup for OnlineSubsystemNull, it works fine. But with this setup, I have the following errors:

CreateSession - Invalid or uninitialized OnlineSubsystem
CreateSession - Cannot map local player unique net ID

which should mean that my setup is somehow wrong but I have no Idea what. I’ve been reading forums for days but none of the solutions seems to work. Thanks for the help.

2

Hey Maynlie,

The first thing to consider is, did you install the Steamworks SDK? You can read how here:

https://docs.unrealengine.com/latest/INT/Programming/Online/Steam/#installingthesteamworkssdk

The second is, after you set up the Steamworks SDK, your DefaultEngine.ini,and [GameName].Build.cs files for Steam, did you compile your game project?

3

I had this link:

that said I didn’t have to download the SDK since the files are already in the Engine Folder (which is true, I checked it carefully). But I thought I also didn’t have to install it. So I’m following those step. Thanks for this, hope it will work.

4

So, I copied the necessary dll into the right directories (Win32 and Win64). Then, I builded my project in Visual Studio with the “Developpement Editor” option, and ran it. Still no change. I’m probably doing something wrong but I have no clue about what it is.

5

Problem solved. I was just silly enough to write [OnlineSubssystem] instead of [OnlineSubsystem]