Warning: in CMake variable EXTRA_COMPONENT_DIRS: Path component 'components/wifi_station components/modbus_tcp' contains a space separator. It was automatically split into ['components/wifi_station', 'components/modbus_tcp'] Warning: in CMake variable EXTRA_COMPONENT_DIRS: Path component ' components/wifi_station components/modbus_tcp' contains leading spaces Note: In ESP-IDF v5.0 and later, COMPONENT_DIRS and EXTRA_COMPONENT_DIRS should be defined as CMake lists, not as space separated strings. Examples: * set(EXTRA_COMPONENT_DIRS path/to/components path/to/more/components) # Correct, EXTRA_COMPONENT_DIRS is defined as a CMake list, with two paths added * list(APPEND EXTRA_COMPONENT_DIRS path/to/component) list(APPEND EXTRA_COMPONENT_DIRS path/to/more/components) # Correct, use when building EXTRA_COMPONENT_DIRS incrementally * set(EXTRA_COMPONENT_DIRS path/to/components "another/path with space/components") # Literal path with spaces has to be quoted * set(EXTRA_COMPONENT_DIRS $ENV{MY_PATH}/components dir/more_components) # Correct, even if MY_PATH contains spaces * set(EXTRA_COMPONENT_DIRS ${ROOT}/component1 ${ROOT}/component2 ${ROOT}/component3) # Correct, even if ROOT contains spaces Avoid string concatenation! set(EXTRA_COMPONENT_DIRS "${EXTRA_COMPONENT_DIRS} component1") set(EXTRA_COMPONENT_DIRS "${EXTRA_COMPONENT_DIRS} component2") # Incorrect. String "component1 component2" may indicate a single directory # name with a space, or two directory names separated by space. Instead use: list(APPEND component1) list(APPEND component2) Defining COMPONENT_DIRS and EXTRA_COMPONENT_DIRS as CMake lists is backwards compatible with ESP-IDF 4.4 and below. (If you think these variables are defined correctly in your project and this message is not relevant, please report this as an issue.) Diagnostic info: E:/Espressif/frameworks/esp-idf-v5.0.4/tools/split_paths_by_spaces.py was invoked in E:\Espressif\frameworks\esp-idf-v5.0.4\app\wheel with arguments: ['--var-name=EXTRA_COMPONENT_DIRS', ' components/wifi_station components/modbus_tcp']