EP04 Cross-Compiling for Linux with Unreal Engine 5

[@JustinTollison]

Anyone that's running into the "The SDK for Linux is not installed properly, which is needed to generate data..." when you try to package your build, make sure you install the proper Toolchain version that matches the Unreal Source version you're using. The one linked in the video is for 5.2, but the Unreal Source version is updated now to 5.5. Took me a while to figure out haha, hope it helps!

[@LinuxCoder-Root]

Thank you for sharing, much appreciated. A few moment later... Thank you again!! 😁👍

[@BasketcaseSoftware]

It's a command line thing to upgrade from WSL 1 to WSL 2. It's pretty quick too - and worth it.

[@JyotiEntertainmentProduction]

Thank you very much for the series Sir. I have been following from the first episode. Everything is working fine up to 9:02 in this episode. After running the Linux server, the Windows client does nothing when clicking the Login Button. Means it's not connecting to the Linux Server perhaps. Can you please tell us what might have been the reason. (Using UE 5.3.2 source build, VS 2022, WSL Version 1, UEToolChain - v22_clang-16.0.6-centos7). Thank you.

[@amrindersingh1292]

did you get the solution

[@amgalanaltansukh5538]

I had same problem and fixed it. By doing this: (1) Run "ifconfig" command on the wsl terminal and get the ip address of the server on Linux. (2)Then, replace the address on Open Level command in WBP_MainMenu by the server's ip address.

[@JyotiEntertainmentProduction]

@@amgalanaltansukh5538 Will try. Thanks.

[@onx2rj]

For those that see "WSL1 is not supported with your current machine configuration", you can go to control panel -> turn Windows features on or off -> check Windows Subsystem for Linux.

[@RandomNumber9999]

Thank you so much!

[@foreverwhisper]

Unable to use this tutorial, I installed ue5.4.4 from launcher, installed cross-compile toolchain, but within editor, it shows a popup windows saying that linux sdk not installed, after I ignored it and continue to build a package and eventually it failed.

[@hodgepodge1891]

I did this on UE 5.4 and had issues running the linux server. "File not found." Wasn't sure how to solve... other than I didn't get any issue on UE 5.3.

[@onx2rj]

I had to run the build a second time for it to work. The error was just "Unknown Error".

[@Crovea]

Excellent tutorial! Unfortunately got this error during server package: Platform Linux is not a valid platform to build. Check that the SDK is installed properly and that you have the necessary platorm support files (DataDrivenPlatformInfo.ini, SDK.json, etc). but I'll figure it out

[@amrindersingh1292]

did you figure it out?

[@SS-gu2tx]

I don't know how but this completely broke my ability to work with my project, I've built both the engine and project several times. I'm getting an error saying the project is in a different version. This is after simply adding the cross compile tool and building the engine. It's a massive setback. I can't get any work done.

[@AlphaSpaceDev]

Hi, thanks for this great series. WSL 1 is needed when testing local, and WSL 2 when setting it up on a different IP/Network?

[@CarrelSpace]

WSL is kind of like a Linux emulator that we only use for local testing. WSL version 2 just adds complications to networking and defeats the purpose, which is to quickly validate that we can connect to a Linux dedicated server with a Windows client. If you would like to test with a remote dedicated server (hosted on a different network), the best way to do so is to launch a free server on a cloud platform and install the game server build. Check out the next episode to do just that :)

[@onx2rj]

Are UE5.4 users able to connect from linux server to windows client? I click login and nothing happens and there isn't any log output in my terminal

[@onx2rj]

I figured it out! Just set your default version of wsl to 2 and it works in my case. wsl --set-default-version 2

[@amrindersingh1292]

@@onx2rj I faced same issue, and i tried setting wsl to version 2, still no response when I press login. Can you help me please?

[@BasketcaseSoftware]

Your URLs are still being clipped.

[@il4w]

man my building my engine again actually started compiling about 5K files and I am pretty sure i clicked on build not rebuild don't know why that BS would happen, uhhh 😒😒 seems like its compiling the whole engine again. ps: i am using 5.3