Instalation of ESP32 support failed

Using Arduino IDE 1.x
1

Hi, I have installed the latest Arduino 1.8.9.
Then I followed instructions from

I entered
https://dl.espressif.com/dl/package_esp32_index.json
into the “Additional Board Manager URLs” field.

But when Tools->Board->Boards Manager is opened, there is no ESP32 on the list.
Arduino shows this error:
Error downloading https://dl.espressif.com/dl/package_esp32_index.json

Previously I have successfully added the ESP32 on my other Win7 computer,
but now on this Win10 notebook it fails.
Has anybody solved similar problem ?

2
  • After you get that error, click the "Close" button in the Boards Manager window.
  • Click on the black console window at the bottom of the Arduino IDE window.
  • Press "Ctrl + A". This will select all the text in the console window.
  • Press "Ctrl + C". This will copy the selected text to the clipboard.
  • In a reply here, click the </> button on the forum toolbar. This will insert code tags into the reply field.
  • Press "Ctrl + V". This will paste the copied text from the clipboard between the code tags.
  • Click "Post".
3 
Error downloading https://dl.espressif.com/dl/package_esp32_index.json

This is the only line shown in the black console window.
Is there any way to get more details about the error ?

4

Try this:

  • (In the Arduino IDE) File > Preferences
  • Click the link at the line following "More preferences can be edited directly in the file". This will open the Arduino15 (or similar name depending on OS) folder.
  • Delete all files in that folder except for preferences.txt. Please be very careful when deleting things on your computer. When in doubt, back up!
  • (In the Arduino IDE) Close the Boards Manager window if it's open.
  • Tools > Board > Boards Manager
  • Wait for the downloads to finish.
5

Thank you very much Pert,
I did what you wrote and instalation of ESP32 was successful !

6

You're welcome. I'm glad to hear it's working now. Enjoy!
Per