Launching engine gives nonsense message about missing modules

I see, try the following.

1 - Generate de visual studio files. Wait until the end.

2 - Open the project from Rider/VisualStudio (Open the sln file).

3 - Select your game as started project and build editor in debug game or development game editor


Looks like the module of your game is not being compiled. Just open one time the project from visual studio and should work.