Hi Alexandre.
Hi don’t know what might be wrong.
I never had any problem installing the SPIFFS plugin.
The best way to get help is to publish an issue in the plugin issues tab:https://github.com/me-no-dev/arduino-esp32fs-plugin/issues
I didn’t understand if you can see the “Data Sketch Upload” option in your Arduino IDE or not.
And what was exactly the issue with the folder? It didn’t include the .jar file?
Regards,
Sara

Good morning Sara thanks for the answer

I will try to detail in three steps:

FIRST: When I download and unzip the esp32fs file for C: \ Alexandre_Duarte \ ARDUINO_1.8.8 \ tools 
in the end it was like this
C: \ Alexandre_Duarte \ ARDUINO_1.8.8 \ tools \ ESP32FS \ tool \ com \ esp32 \ mkspiffs 
inside the mkspiffs folder there is no .jar file but three files 
ESP32FS $ 1.class 
ESP32FS $ 2.class 
ESP32FS.class
many folders inside others and none of the .jar file.

SECOND: on the arduino ide, the options for loading SPIFFS for esp 32 appear.

THIRD AND LAST:when I click on the option "ESP32 Data Sketch Upload" it gives the error
SPIFFS Error: esptool not found!

Thank you sara i will also try to see on the website you indicated.

Hi again.
Can you try download the file by clicking this link and then follow all the steps: https://github.com/me-no-dev/arduino-esp32fs-plugin/releases/download/1.0/ESP32FS-1.0.zip ?
Regards,
Sara

Hello Sara
it happens exactly the same I will hope it could be that someone has had the 
same problem, regards Alexandre.

Hi Alexandre,

• Download Arduino IDE 1.8.13
• Open Arduino IDE
• Open Preferences window
• Add this line into Additional Boards Manager URLs field:

https://dl.espressif.com/dl/package_esp32_index.json

• Open Boards Manager and install esp32 platform:

From there, esptool is installed. You can find it by following this path:

~/Library/Arduino15/packages/esp32/tools/esptool_py/2.6.1/esptool

I’m on macOS. So if you’re on Linux or Windows, you’ll have to adjust the path…

• Download ESP32FS-1.0.zip from this page.

The archive contains the following items:

$ unzip -l ESP32FS-1.0.zip
Archive:  ESP32FS-1.0.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
        0  01-15-2019 06:53   ESP32FS/
        0  01-15-2019 06:53   ESP32FS/tool/
     7597  01-15-2019 06:53   ESP32FS/tool/esp32fs.jar
---------                     -------
     7597                     3 files

• In your Arduino sketchbook folder, create tools directory if it doesn’t exist yet:

$ mkdir ~/Arduino/tools

• Unzip the archive into this tools folder:

$ unzip -d ~/Arduino/tools ESP32FS-1.0.zip
Archive:  ESP32FS-1.0.zip
   creating: /Users/steph/Arduino/tools/ESP32FS/
   creating: /Users/steph/Arduino/tools/ESP32FS/tool/
  inflating: /Users/steph/Arduino/tools/ESP32FS/tool/esp32fs.jar

Caution: the esp32fs.jar file must not be unarchived!

Reading your post, it appears that you have unarchived the JAR file (perhaps unintentionally, by recursively unarchiving the ZIP). You should not touch the JAR file.

• Now, restart the Arduino IDE.
• Choose an ESP32 board in Tools > Board menu (for example: DOIT ESP32 DEVKIT V1).
• You should now see the ESP32 Sketch Data Upload option appear in the Tools menu:

Hoping that this might help you.

Hello Steph 
I thank you for the help very well explained and exemplified my thanks to you and Sara.
The problem is solved and I will summarize what I did in my case.

I uninstalled the two versions of the Arduino ide (1.8.8 and 1.8.13) and also 
eliminated the folder C: \ Users \ duart \ AppData \ Local \ Arduino15 and then 
installed the Arduino ide version 1.8.13, then I did what you said and now everything is ok.
The conclusion I reach from my point of view was that somehow the two versions of the 
Arduino ide came into conflict, I don't know if I'm sure but that's what it seemed to me.
Best regards 
Alexandre.

Great! The main thing is that everything works now 😉

Hi Steph. Thanks for your detailed explanation.
Hi Alexandre. I’m glad everything is working now.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara