fatal error: littlefs.h: no such file or directory (Fixed)

In this blog post, we’ll be discussing the fatal error: littlefs.h: no such file or directory error and how to fix it.

This error can occur when trying to compile a sketch that uses the LittleFS file system on Arduino boards.

The LittleFS file system is a flash-friendly file system for embedded systems. It is designed to be used on devices with limited RAM and storage, such as microcontrollers.

When you try to compile a sketch that uses the LittleFS file system, you may see the following error:

fatal error: littlefs.h: no such file or directory

This error can be caused by several things:

1. The LittleFS library is not installed.
2. The LittleFS library is not included in your sketch.
3. The LittleFS library is not compatible with your board.

To fix this error, you need to do the following:

1. Install the LittleFS library.
2. Include the LittleFS library in your sketch.
3. Make sure the LittleFS library is compatible with your board.

We’ll go through each of these steps in more detail below.

1. Install the LittleFS library.

The first thing you need to do is install the LittleFS library.

You can install the library using the Arduino IDE Library Manager.

Open the Arduino IDE and go to Sketch > Include Library > Manage Libraries.

In the search box, type “littlefs” and press Enter.

You should see the LittleFS library in the list of results.

Click on the library and then click the Install button.

The library will be installed and you will be able to use it in your sketches.

2. Include the LittleFS library in your sketch.

Once the LittleFS library is installed, you need to include it in your sketch.

You can do this by going to Sketch > Include Library > LittleFS.

This will add the following line of code to your sketch:

#include <littlefs.h>

3. Make sure the LittleFS library is compatible with your board.

The LittleFS library is compatible with a number of Arduino boards, including the Arduino UNO, Arduino Mega, and Arduino Nano.

However, it is not compatible with all Arduino boards.

If you’re using a board that is not listed as compatible, you may see the fatal error: littlefs.h: no such file or directory error.

To fix this, you need to use a compatible board.

You can find a list of compatible boards here:

https://github.com/khoih-prog/LittleFS_Mbed_RP2040

If you’re using an incompatible board, you can try using a compatible board instead.

Conclusion

If you’re using a compatible board and you’re still seeing the fatal error: littlefs.h: no such file or directory error, please post in the LittleFS support forum:

https://forum.arduino.cc/

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