2020-09-11_12:52:42
The type that a C++ module has.
Set in the Modules list of a project's .uproject or a plugin's .uplugin.
Common ones are Editor and Runtime.
Editor means that the module is loaded when opening Unreal Editor.
Runtime means that the module is loaded both when opening Unreal Editor and when running as a stand-alone game.
There used to be a Developer type as well, but it was deprecated in 4.24.
Using it in 4.25 gives the following warning:
WARNING: The 'Developer' module type has been deprecated in 4.24. Use 'DeveloperTool' for modules that can be loaded by game/client/server targets in non-shipping configurations, or 'UncookedOnly' for modules that should only be loaded by uncooked editor and program targets (eg. modules containing blueprint nodes)
So I guess one should use DeveloperTool instead.
It is related to bBuildDeveloperTools which can be set in in .Target.cs files.
DeveloperTool modules will not be built if bBuilDeveloperTools is false.
It may be that the type must be Editor when depending on editor modules