Executable component outside main folder casuses error during build (CON-731)

[damian-kurek-wizzdev]

Describe the bug If I put my esp component that builds executable for mcu in a folder different than "main" I get cmake error while somewhere in matter. If I rename the folder to main everything works fine. I think that renaming the folder in any example and adding it to EXTRA_COMPONENT_DIRS should trigger the issue. Esp-idf projects worked fine when an executable component was in a different folder than "main".

CMake Error at main/externals/esp-idf/tools/cmake/component.cmake:368 (__component_get_property): __component_get_property Function invoked with incorrect arguments for function named: __component_get_property Call Stack (most recent call first): main/src/matter_components/esp-matter/esp-matter/connectedhomeip/connectedhomeip/config/esp32/components/chip/CMakeLists.txt:322 (idf_component_get_property)

cmake extra component: set(EXTRA_COMPONENT_DIRS "main2" "${ESP_MATTER_PATH}/examples/common" "${MATTER_SDK_PATH}/config/esp32/components" "${ESP_MATTER_PATH}/components" "${ESP_MATTER_PATH}/device_hal/device" ${extra_components_dirs_append})

Environment

• ESP-Matter Commit Id: release 1.0
• ESP-IDF Commit Id: 4.4.3
• SoC (eg: ESP32 or ESP32-C3): ESP32
• Device Logs (Please attach the log file):
• Host Machine OS: Ubuntu 22.04
• Commissioner app and versions if present:
• Commissioner's logs if present:

Any additional details ...

[shubhamdp]

@damian-kurek-wizzdev I think that is expected, please check here. This file explicitly tries to link the main component.

If you want this to build, you may have to change here as well. Since the śp-idf projects uses only CMake build system that may have worked there. But, Matter uses CMake along with GN so its a bit complicated setup.

[damian-kurek-wizzdev]

@shubhamdp If it is expected behaviour some meaningful error should be thrown to a user. For example: "Your executable component should be located in a directory called 'main'." Or something like that. For now, it is black magic that took me 1 week to figure out.

[ShahilDholariya]

Hi @shubhamdp, @damian-kurek-wizzdev

I am encountering a similar issue where placing the executable component in a folder other than main results in a CMake error. The error message indicates problems with __component_get_property, which seems to be related to the location of the executable component.

As you mentioned, it might be expected behaviour due to how Matter uses CMake along with GN. However, this behaviour is not clearly documented, and it took me quite a while to identify the issue. Could you provide more details on why this restriction exists and suggest any possible workarounds?

Any guidance on how to handle or resolve this issue would be greatly appreciated.

Thanks!

[shubhamdp]

@damian-kurek-wizzdev @ShahilDholariya I have added the changes in this PR to support renaming main... https://github.com/project-chip/connectedhomeip/pull/34497

Will update the submodule once it gets merged.

[dhrishi]

Fixed with the connectedhomeip submodule update.