For the Arduino ide is a LittleFs upload Plugin (similar to the Publish Server Data Files) available. This is needed to upload the Data folder to the LittleFS spiffs.

For Visual Micro i have not found a LittleFS upload plugin. The normal spiffs upload does work, but the Files are not visible/accessible.

Is there any way to get it work?

We normally support LittleFS. Please follow the guide above and then add the data folder and click the Publish Data Files command.

Post the output so we can see the error.

Thanks

The current integration in Visual Micro for LittleFS, expects SPIFFS to have been deprecated and not included in the package before switching to it.

In the current version, if you Right Click the project in Solution Explorer > Add > Local Board.txt, and then add the below entry to it, it will force it to use LittleFS:
[code]# Force LittleFS Usage for ESP8266
runtime.tools.mkspiffs.path=notTheToolYoureLookingFor[/code]

Let us know if there are any issues with this and we will update if there are any alternative routes or options to access LittleFS in the future.

We have added a documentation page for this process: ESP8266 SPIFFS and LittleFS FileSystems

It seems that for ESP32 the workaroud with "Local Board.txt" doesn't work.

Now I've copied the "mklittlefs.exe" to the following folder and replaced it with the original "mkspiffs.exe" by renaming it.

{Username}\AppData\Local\Arduino15\packages\esp32\tools\mkspiffs\0.2.3

=> Now it seems to work with LittleFS  :)

Will there be an official support for littleFS and ESP32 in VisualMicro?

Thanks for the report.

The current ESP32 Arduino core does not come with the LittleFS tools, which is why we have not supported it so far through the same override.

Did you clone it across from the ESP8266 core? (There are a number of other projects / libraries which also aim to add this functionality)

I used the executable from the following project:

https://github.com/earlephilhower/mklittlefs/releases
x86_64-w64-mingw32-mklittlefs-295fe9b.zip