ESP32 Forum

Posted: **Fri Dec 03, 2021 2:33 am**

Hi Everyone, this might be very silly question but I still couldn't be able to overcome this. I am currently working on a product which needs to use a few sensors and transact some data using MQTT and have to use ESP-IDF.
So I just created a sample project in VSCode and created a component library just using "idf.py -C components create-component my_component" command and I just added "my_component.h" in a "main.c" file and try to build but ended up "fatal error: my_component.h: No such file or directory" although all CMakeLists and make file are included.

- sample_project/
- CMakeLists.txt
- sdkconfig
- components/ - my_component/
- CMakeLists.txt
- my_component.c
- include/
- my_component.h
- main/ - CMakeLists.txt
- main.c
- component.mk

- build/

Please let me know if you need to clarify more things about the questions.
Apology for my poor writing skill and thanks so much in advance for your help.

Posted: **Sat Dec 04, 2021 1:02 am**

In - main/ - CMakeLists.txt you should have something like the following :

Code: Select all

idf_component_register(SRCS "main.c"
                  INCLUDE_DIRS "."
                  PRIV_REQUIRES my_component)

or

Code: Select all

                
set(includedirs
  ../components/my_component/include/
  "."    # this line is probably not needed since main dir is included by default and there are no sub-directories under main
  )

idf_component_register(SRCS "main.c"
                    INCLUDE_DIRS ${includedirs} 
                    PRIV_REQUIRES my_component)

Posted: **Mon Dec 06, 2021 12:43 am**

Hi @troyduncan, noted and thanks so much for your reply. It worked and thanks so much again for your prompt response...

Posted: **Wed Sep 04, 2024 3:33 am**

hello everyone , i have follow before recommands to install c/c++ extensions and build the project,the include problem have been sloved successfully,however i face another cmake warning .
in c_cpp_properties.json :
Cannot find "${env:IDF_PATH}/components/"

and cmake error in CMakeList.txts:
[{
"resource": "/E:/esp32/esp32-c3-jlc/project/humi_temp/CMakeLists.txt",
"owner": "cmake-configure-diags",
"severity": 8,
"message": "CMake Error at CMakeLists.txt:7 (include):include could not find requested file:\n\n /tools/cmake/project.cmake",
"source": "CMake (include)",
"startLineNumber": 7,
"startColumn": 1,
"endLineNumber": 7,
"endColumn": 10000
}]

blow is my c_cpp_properties.json：
{
"configurations": [
{
"name": "ESP-IDF",
"compilerPath": "${config:idf.toolsPathWin}\\tools\\riscv32-esp-elf\\esp-13.2.0_20230928\\riscv32-esp-elf\\bin\\riscv32-esp-elf-gcc.exe",
"compileCommands": "${config:idf.buildPath}/compile_commands.json",
"includePath": [
"${config:idf.espIdfPath}/components/**",
"${config:idf.espIdfPathWin}/components/**",
"${workspaceFolder}/**"
],
"browse": {
"path": [
"${config:idf.espIdfPath}/components",
"${config:idf.espIdfPathWin}/components",
"${workspaceFolder}"
],
"limitSymbolsToIncludedHeaders": true
}
}
],
"version": 4
}

CMakeLists.txt:
# For more information about build system see
# https://docs.espressif.com/projects/esp ... ystem.html
# The following five lines of boilerplate have to be in your project's
# CMakeLists in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.16)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(humi_temp)

attach is my extension version info:
my c/c++ extension version:v1.21.6

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