enable CONFIG_LV_USE_FS_ARDUINO_ESP_LITTLEFS=y. BUILD ERROR!!!

[ngowangvinh]

LVGL version

v9.2.2

Platform

ESP-IDF 5.3.2 (using VScode extension)
Arduino 3.1.0~1 as component
lvgl 9.2.2 as component

What happened?

Error when build:

W:/ESP_IDF/project/test_lvgl_lovy_esp32_wrover/managed_components/lvgl__lvgl/src/libs/fsdrv/lv_fs_arduino_esp_littlefs.cpp:5:10: fatal error: LittleFS.h: No such file or directory
   5 | #include "LittleFS.h"

How to reproduce?

ADD Arduino and lvgl as components in ESP-IDF VSCODE Extension project.

dependencies:
  idf:
    version: '>=4.1.0' 
  espressif/arduino-esp32: ^3.1.0~1
  lvgl/lvgl: ^9.2.2

set sdkconfig:

CONFIG_LV_FS_DEFAULT_DRIVE_LETTER=70
CONFIG_LV_USE_FS_ARDUINO_ESP_LITTLEFS=y
CONFIG_LV_FS_ARDUINO_ESP_LITTLEFS_LETTER=70

Build project -> error occur!

[liamHowatt]

You need to add LittleFS to your project too, as it its source and headers are not included in LVGL.

[ngowangvinh]

Work around the problem by add REQUIRES arduino-esp32 (line 64) in to file esp.cmake in /env_support/cmake.

[liamHowatt]

Nice. arduino-esp32 has a dependency on LittleFS so it makes sense. https://github.com/espressif/arduino-esp32/blob/fcce93a02949c50ce7ab565884b933fb474b3437/idf_component.yml#L119

Since that cmake file is generic and not specifically Arduino, we probably shouldn't add that line in LVGL. Do you think it'd make sense to add something like if(arduino) REQUIRES arduino-esp32?

[ngowangvinh]

I tried to use below code to conditioning register component. But can not sort out the problem.

 if(CONFIG_LV_USE_FS_ARDUINO_ESP_LITTLEFS OR CONFIG_LV_USE_FS_ARDUINO_SD)
      idf_component_register(SRCS ${SOURCES} ${EXAMPLE_SOURCES} ${DEMO_SOURCES}
          INCLUDE_DIRS ${LVGL_ROOT_DIR} ${LVGL_ROOT_DIR}/src ${LVGL_ROOT_DIR}/../
                        ${LVGL_ROOT_DIR}/examples ${LVGL_ROOT_DIR}/demos
          REQUIRES esp_timer arduino-esp32) 
    #I already add code to make sure this condition is true
  else()
      idf_component_register(SRCS ${SOURCES} ${EXAMPLE_SOURCES} ${DEMO_SOURCES}
            INCLUDE_DIRS ${LVGL_ROOT_DIR} ${LVGL_ROOT_DIR}/src ${LVGL_ROOT_DIR}/../
                          ${LVGL_ROOT_DIR}/examples ${LVGL_ROOT_DIR}/demos
            REQUIRES esp_timer) 
  endif()

I refer here: https://github.com/espressif/esp-protocols/blob/542547d38bcd656aab3e8fd6f35dcfa5500dfcda/components/esp_websocket_client/CMakeLists.txt

I just know a little about cmake, so I don't know how to write a right code to sort out the problem.

without conditoning, follow code can resolve the error:

idf_component_register(SRCS ${SOURCES} ${EXAMPLE_SOURCES} ${DEMO_SOURCES}
              INCLUDE_DIRS ${LVGL_ROOT_DIR} ${LVGL_ROOT_DIR}/src ${LVGL_ROOT_DIR}/../
              ${LVGL_ROOT_DIR}/examples ${LVGL_ROOT_DIR}/demos
              REQUIRES esp_timer arduino-esp32)  

[lvgl-bot]

We need some feedback on this issue.

Now we mark this as "Abandoned" because there was no activity here for 14 days.

Remove the "Stale" label or comment else this will be closed in 7 days.

[liamHowatt]

Hmm, looks correct. What was the error?

[lvgl-bot]

We need some feedback on this issue.

Now we mark this as "Abandoned" because there was no activity here for 14 days.

Remove the "Stale" label or comment else this will be closed in 7 days.

[lvgl-bot]

As there was no activity here for a while we close this issue. But don't worry, the conversation is still here and you can get back to it at any time.

Feel free to comment if you have remarks or ideas on this topic.