There is currently an issue where Epic's build process deletes the SDL3.dll file. I am working on a solution.
Please make sure that the file SimpleController/Binaries/Win64/SDL3.dll exists. If it is missing, please copy it (do not cut it) from the directory: SimpleController\Source\ThirdParty\64
Every now and then a new SDL framework version comes with a plugin update in the form of a SDL2.dll/SDL3.dll ( libSDL2.dylib/libSDL3.0.dylib on OSX ).
My plugin tries to replace the SDL2.dll/SDL3.dll. But this is not always successful and there is an error message when starting the editor that looks like this or something similar.
In such a case please delete the SDL2.dll/SDL3.dll from yourProjectDirectory\Binaries\Win64 (and Win32).
The plugin then copies the new SDL2.dll/SDL3.dll back there.
If the SDL2.dll/SDL3.dll is missing, you can find it in the plugin directory SimpleController\Source\ThirdParty\64
You can find the plugin in Unreal Engine\UE_5.6\Engine\Plugins\Marketplace.
If you enter sdl in the output log editor you will see which SDL version is used
| Plugin Version | SDL Version |
| 4.0 | 3.4.0 |
| 3.9 | 2.29.0 (windows) |
| 3.4 | 2.28.5 |
| 3.x | 2.28.2 |
| 2.7 | 2.24.1 |
Github
If you want to replace the SDL2.dll/SDL3.dll with a newer or older version then remember to replace all 3 files. You can find the .dll in:
yourProject\Plugins\SimpleController\Source\ThirdParty\64
yourProject\Plugins\SimpleController\Binaries\Win64
yourProject\Binaries\Win64
Mac
Unfortunately, Epic has made some changes to their build system, and Epic’s system simply can’t find the SDL library (libSDL3.0.dylib).
However, I haven’t had any issues with it on my Mac. The libSDL3.0.dylib file should be located in the plugin’s SimpleController\Source\ThirdParty\Mac directory.
Otherwise, you can download it here or compile it yourself. If you have an official Apple account, you should compile and sign it yourself.
These days, you can simply ask an AI how to do that. Just tell it that you need SDL 3 in the form of a dylib for ARM and x86 and ask for a signature. You should place the libSDL3.0.dylib in these directories:
yourProject\Plugins\SimpleController\Source\ThirdParty\Mac
yourProject\Plugins\SimpleController\Binaries\Mac
yourProject\Binaries\Mac
You also need to add "Mac" to SimpleController.uplugin.
