ESP32 Forum

Downloading packages
esp32:esp32-arduino-libs@idf-release_v5.5-9bb7aa84-v2
esp32:esp-x32@2511
esp32:xtensa-esp-elf-gdb@16.3_20250913
esp32:esp-rv32@2511
Failed to install platform: 'esp32:esp32:3.3.5'.
Error: 4 DEADLINE_EXCEEDED: net/http: request canceled (Client.Timeout or context cancellation while reading body)

The timeout at which Arduino IDE cancels a download is configurable. You should be able to work around this problem by configuring a higher timeout value. I'll provide instructions you can follow to do that:

Select File > Quit from the Arduino IDE menus if it is running.
All Arduino IDE windows will close.
Open the file at the following path in any text editor:

C:\Users\<username>\.arduinoIDE\arduino-cli.yaml

(where <username> is your Windows username)
Add the following content to the arduino-cli.yaml file (or replace the existing content if equivalent content is already present in the file):

network:
connection_timeout: 300s

ⓘ I arbitrarily chose a timeout value of 300 s. You can adjust this as needed.
Save the file.
Start Arduino IDE.

Now try installing/updating the "esp32" boards platform again, just the same as you did before. Hopefully this time it will be successful.

The Arduino CLI developers are tracking the need to adjust the timeout system to avoid spurious failures when the default configuration is in place here:

add the follow lines on:
C:\Users\your_windows_user_\.arduinoIDE\arduino-cli.yaml

Code: Select all

network:
  connection_timeout: 300s

Save the file ad restart Arduino IDE