After packaging my game with build successful when I launch the game I get this error, I found the plugin in the engine plugins so its there and exists, I tried disabling and re-enabling with no luck, and this plugin is needed as my project is multiplayer. Any help is appreciated.
Note: I am using advanced sessions plugin
Did you find any solution to this?
I am also stuck with same problem
Same issue. Had a very similar problem, ApexDestruction is a dependency of the VictoryPlugin and it was throwing this error both with and without VP. Same for SteamOSS/SteamShared, error with or without the advanced sessions plugins.
After upgrading to VS2022 Community with gaming pack (not unity) and universal win pack selected in it only a small part stayed behind. On the VP side everything is fine while on the Steam side I only have an error if the advanced sessions plugins are in. I guess it is their fault? I do have the newest one I think…
(Had to delete previous post and post this as a new one since for some reason commiting an edited post doesn’t work?)
For some reason I still cannot commit my edits so here it is as a new post, sorry if I offend moderators for posting it separated.
UPDATE:
Solution found, thanks to a saintly Reddit poster and google letting me find it:
https://www.reddit.com/r/unrealengine/comments/j85uec/advanced_sessions_plugin_problems/
· 1 yr. ago
Indie
are you using blueprints only ? In 4.25 if you want to package out a plugin you have to have at least 1 c++ class in your project. You can achieve this by right clicking in your content browser and adding a new c++ class then just name it dummy or something. Then just sit back and chillaxe while visual complies solutions, Once that’s done then close out your project then open your file explorer and go to project folder. Delete Intermediate / Build / Binary folders then run your project again and hit build when asked. Now you are good to go should be able to package out your game np
Feel free to copy your entire project as a backup before you begin this process if your worried but this will work, its just always good to be safe especially when it comes to stuff you pouring hours into.
Slight difference is that my project Was blueprint only so right click in content browser didn’t allow creation of a cpp class but “file menu/new c++ class” hook me up with an empty dummy class in no time. Did need to start the build on my own in visual studio (which is terribly hard, build menu, build project, wait till done).
And now it all works. I still get “LogPlayLevel: Detected compiler newer than Visual Studio 2019, please update min version checking in WindowsPlatformCompilerSetup.h” but I’m guessing I can solve that later. If nothing else, since apparently I didn’t even need to switch to VS22, I could just go back to '19 and would probably work fine.
Anyways, I’m happy and I hope I helped to spread the knowledge of this wonderful reddit comment. On the other hand if this does cause some other issues I never noticed, do tell please 
But yeah, so far, no problem.
Sorry for not replying to this sooner… but I did end up finding a solution, what did to fix this was installing the plugin into the engine’s plugin folder. Previously I had it installed in my project’s plugin folder which for some reason caused this issue.
Ty for the share, same here, this solved my problem.
I’m using unreal engine 5.1 and moving AdvancedSession and AdvancedSteamSession plugin and packaging the project was not possible.
I compiled the project using VS22 after creating a dummy c++ class (short tuto here UE5 How to Make a C++ Class in Blueprint Project Unreal Engine - YouTube)
For anyone still getting this error or having issues with opening the includes: OnlineSubsystem.h, OnlineSessionSettings.h, or OnlineSessionInterface.h, even after adding the modules to the build.cs file. Save and close Visual Studio. Go to your project folder, right click on your UProject file and generate Visual Studio Files.
