Unresolved inclusion. unless it was included in "app_main.c". (IEP-1206)

[SirPumpkin797]

Describe the bug
I have created one project from Espress IDF Project SPI_Slave_Receive and modified it by adding DEFINE.h Extern_Vars.h Global_Vars.c HW_Setup.h SPI.h SPI.c Wifi.h Wifi.c.

All inclusions that refers to common libraries like "stdio.h" "esp_wifi.h" are not able to be resolved, unless it was included in file "app_main.c". (for example in DEFINE.H).

To Reproduce

1. create header file like "DEFINE.H"
2. include "DEFINE.H" in app_main.c
3. include all inclusions in "DEFINE.H" instead of in app_main.c
4. see erros.
   Expected behavior

Screenshots

Espressif-IDE Product Information:
Espressif-IDE Product Information.txt

Eclipse Error log.log:
Window > Show View > Other > Search for "Error Log" (Attach as a file)

Please attach the error log as described here https://github.com/espressif/idf-eclipse-plugin#error-log

[AndriiFilippov]

With the 4.0.0 release, the previous CDT indexer has been replaced by the CDT LSP indexer.
Closing this ticket as part of the cleanup of outdated issues.