Unresolved Inclusion for Dual Core Project

[TurboGandalf]

Hello there,

I made a project using the STM32H7A3 controller. I imported the project into my workspace and everything worked fine. The project got recognized as a CubeIDE project and compiling it was no problem. Now I wanted to switch to the STM32H755 controller which is a dual core controller. Mainly because it has an onboard ethernet connector. I wanted to test my old project on the new controller and configured a new project with CubeMX and generated Code. I set the toolchain to STM32CubeIDE and ticked “generate under root”. It generated the following structure:

Now, when I import the project into my workspace, only the sub-projects CM7 and CM4 for the two cores can be separately built but the root project does not get recognized as a CubeIDE Project. Additionally, every #include for HAL driver headers has an unresolved inclusion error:
 

main.h

This is the main.h file that got generated inside the CM7 folder. On default files and other files I copied all the includes work except for those HAL headers. They all have the Unresolved inclusion error. That leads to functions not working or rather not being resolved:

The strange thing is, I can compile the separate Cores CM7 and CM4 without any errors:

For some reason the compiler can find the symbols, otherwise there would be an error like “undefined reference” or something.

This is a fresh install, so all Settings should be default and Im using version 2.2.0 and the latest CubeMX.

When I check my paths and symbols I see this:

There are already warning symbols. Iirc these appear if the system cant find the paths. I checked all these folders at the bottom:

All the files exist like on my other project that worked for some reason. I suspect it is due to the fact that the IDE doesnt recognize the Root folder of the project as a CubeIDE Project. I tried manually adding the paths but this didnt work. I also checked for build options for the root folder, but there werent any. Hope someone has an idea.

 

Cheers

[TurboGandalf]

UPDATE:

 

If I copy all the content inside the Drivers folder from the Root Project folder to the specific CM7/CM4 folder, the unresolved inclusions are gone after rebuilding the index. Problem is, that some things are still unresolved. For example:

I think this is an indexer issue. The compiler knows where the files are but somehow the indexer doesnt. The indexer knows everything inside the CM7 and CM4 folders, but it doesnt know anything from the root folder it seems like.

[TurboGandalf]

UPDATE:

 

While trying to ignore the problem for testing purposes, I found out that none of my cpp files got compiled. I should have seen this way earlier since there is no g++ compiler in my screenshot above. The reason was that CubeMX generated a C-Project. I just had to right click the project and click “convert to c++”. That solved all issues for now at least.

Im not sure why converting it to a c++ project made the indexer work properly, because the unresolved inclusions only happened for HAL files.