Required dependencies for UE4 games.

[anonymous_user_e32decfc]

@Ben_Marsh

Recent builds of the engine have the following requirements. It hasn’t changed in some time, so it should apply to older versions of the engine too: XInput 1.3 (April 2007)
X3DAudio 1.7 (February 2010)
XAudio 2.7 (June 2010)
D3D Compiler 4.3 (June 2010)
D3DCSX 4.3 (June 2010)
D3DX9 4.3 (June 2010)
D3DX10 4.3 (June 2010)
D3DX11 4.3 (June 2010) Also the Visual Studio 2015/2017 redist and universal CRT.

The notable things from that list are the XInput, X3DAudio, and XAudio dependencies. These aren’t included in standard installations of DirectX (and aren’t distributed with the OS by default), and have to be installed manually or distributed with the application.

For Fortnite, we use the “app local dependencies” option I mentioned earlier. All the files above are stored in Engine/Binaries/ThirdParty/AppLocalDependencies - they’re just copied from subfolders under there next to the executable during packaging.

We have an updated docs page explaining this, but it seems to have got stuck in review before being published. I’ll try to get that moved along.

I tried checking the box for using the local dependencies and designated the folder specified above but the project.exe still throws the exception that it needs DirectX runtime. I am using the source code version of 4.19 and the build process does not throw any exceptions. Is there something specific I need to change about the build process in order to get it to work properly?