Firstly let me clarify, that I carefully read and followed these instructions:
The problem: I want to use the lowlevel API of FMOD in UE4. However the compiler is not able to find the include files. I downloaded the correct version (UE4.20, latest FMOD) of the FMOD UE4 API from the site and unpacked the zip to the engine’s plugin folder. (Folder structure: f:\Games\UE_4.20\Engine\Plugins\FMODStudio). In the Unreal Editor it correctly appears as a plugin. I created a new project, and open it in Visual Studio. I add “FMODStudio” to the dependencies in Build.cs. I rebuilt the project. I tried to #include “FMODEvent.h” as suggested as a test, and add a testevent but it would not compile, it couldnt find the file. I even tried manually adding the header files to the include directories and the libs.
The question: what am I doing wrong?
I am only interested in Windows development, and I tried this with both precompiled engine binaries and with the github source code.