Error received: E (1507) esp_littlefs: partition "spiffs" could not be found E (1507) esp_littlefs: Failed to initialize LittleFS [ 1605][E][LittleFS.cpp:98] begin(): Mounting LittleFS failed! Error: 261 LittleFS Mount Failed I am using platform espressif32 6.12.0 My partitions.csv looks as fo…

And you did upload a filesystem separately? Just create a data folder in your project, put some text file in it and use the project task “Upload filesystem” ( https://docs.platformio.org/en/latest/platforms/espressif32.html#uploading-files-to-file-system ).

Yes I have also tried doing it but no gain.

[image] ronak.m: board_build.partitions = partitions.csv What if you delete this line and use project task → upload and project task → upload filesystem? The default.csv already has a SPIFFS partition.

When I use the default partition by commenting board_build.partitions, I still see no progress. If you have a esp32s3 can you try the following code #include <Arduino.h> #include "esp_partition.h" #include <LittleFS.h> void listPartitions() { const esp_partition_t *partition; esp_partition_i…

It seems everyone is guiding to this link [image] Arduino IDE 2: Install ESP32 LittleFS Uploader | Random Nerd Tutorials Upload files to the ESP32 LittleFS Filesystem using Arduino IDE 2 or a higher version. We'll install an uploader plugin that will add a new menu to the Arduino IDE. …

Hm… I had no issues running the code on my ESP32-S3-N16R8.

This output is just as “default_8MB.csv“ and it is shown in “esp32-s3-devkitc-1.json“, it is not your “partitions.csv“. You may confirm the location of your “partitions.csv“. Is it same folder of “default_8MB.csv“ ? I think it is better to refer : Partition scheme not working

[image] ronak.m: board = esp32-s3-devkitc-1 If you are using Esp32s3 devkitc-1 N16R8 , you must write as like board = esp32-s3-devkitc1-n16r8 in your platformio.ini. If you are using your original board, you must make a new (yourboard).json. (I think it is better) Then write your partit…

The esp32-s3-devkitc1-n16r8 manifest you are mentioned is not available in a “vanilla” PlatformIO but in the pioarduino espressif32-platform! Therefore the settings in the platformio.ini made here are fully correct. There is no need to create a dedicated board manifest, but it is optional.

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Esp32s3 N16R8 fails always with LittleFS

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ito_giken October 21, 2025, 5:15am 13

Similar issue:Partition scheme not working