Attempting to install Delft3D, bat files say Intel OneAPI is not installed, but it is.

Rusty2 — Thu, 30 Oct 2025 23:44:14 GMT

hello everybody,

I am a student trying to install Delft3D and running into a major issue. There seems to be something wrong with my intel OneApi when the .bat file with the build is run, it gives the following error:

"Attempting to find the latest versions of Intel OneAPI and Visual Studio based on environment variables...
Warning: Could not find Intel OneAPI version in environment.
Error: oneapi not set. Please ensure that Intel OneAPI is installed and run build.bat from a prompt with the right environment set."

I cannot figure out where the problem is. I triple-checked my visual studio if the correct modifications were selected and I also reinstalled Oneapi and checked if it was linked to Visual Studio and it was.

If I try to run the setvars.bat file in Api, which other posts recommended me to do, it fails to respond in any meaningful way, any help would be amazing and super appreciated.

I am not an engineer or computer scientist by training; rather, I am an Earth Scienctist trying to conduct a study on hydrodynamics, so please be patient as my knowledge remains limited.

Thanks so much, everyone!

topic Attempting to install Delft3D, bat files say Intel OneAPI is not installed, but it is. in Intel® oneAPI DPC++/C++ Compiler

Attempting to install Delft3D, bat files say Intel OneAPI is not installed, but it is.