Consistent `Client.Timeout or context cancellation while reading body` error when installing a core with `1.2.2`

[kittaakos]

Describe the problem

I suspect a regression with 1.2.2, whenever I install a core, I randomly get a Client.Timeout. I do not have the best Internet connection but it was always like that, and I could not reproduce the issue with 1.2.0, for example, or earlier versions.

I did some local testing and switched between 1.2.0 and 1.2.2 CLI versions and tried to install the ESP32 core after wiping ~/Users/kittaakos/Library/Arduino15/staging and ~/Users/kittaakos/Library/Arduino15/packages/esp32. It always failed for me with 1.2.2. There were no issues with 1.2.0. I tried it several times, switching back and forth between the CLI versions. This could be a temporary connection issue on my side. If so, please close this issue, but it could also be a 3rd party dependency update side effect.

To reproduce

./arduino-cli core update-index --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json

./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json

With 1.2.2:

./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool esp32:xtensa-esp-elf-gdb@14.2_20240403 already installed
Tool esp32:riscv32-esp-elf-gdb@14.2_20240403 already installed
Tool esp32:openocd-esp32@v0.12.0-esp32-20241016 already installed
Tool esp32:esptool_py@4.9.dev3 already installed
Tool esp32:mkspiffs@0.2.3 already installed
Tool esp32:mklittlefs@3.0.0-gnu12-dc7f933 already installed
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 already downloaded
esp32:esp-x32@2411 esp32:esp-x32@2411 already downloaded
esp32:esp-rv32@2411 net/http: request canceled (Client.Timeout or context cancellation while reading body)
Error during install: net/http: request canceled (Client.Timeout or context cancellation while reading body)
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool esp32:xtensa-esp-elf-gdb@14.2_20240403 already installed
Tool esp32:riscv32-esp-elf-gdb@14.2_20240403 already installed
Tool esp32:openocd-esp32@v0.12.0-esp32-20241016 already installed
Tool esp32:esptool_py@4.9.dev3 already installed
Tool esp32:mkspiffs@0.2.3 already installed
Tool esp32:mklittlefs@3.0.0-gnu12-dc7f933 already installed
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 already downloaded
esp32:esp-x32@2411 esp32:esp-x32@2411 already downloaded
esp32:esp-rv32@2411 context deadline exceeded (Client.Timeout or context cancellation while reading body)
Error during install: context deadline exceeded (Client.Timeout or context cancellation while reading body

OR

./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 net/http: request canceled (Client.Timeout or context cancellation while reading body)
Error during install: net/http: request canceled (Client.Timeout or context cancellation while reading body)

---

I could not reproduce it with 1.2.0:

./arduino-cli version
arduino-cli  Version: 1.2.0 Commit: 9c495211 Date: 2025-02-24T15:57:28Z
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 downloaded                                         
esp32:esp-x32@2411 downloaded                                                                            
esp32:xtensa-esp-elf-gdb@14.2_20240403 downloaded                                                        
esp32:esp-rv32@2411 downloaded                                                                           
esp32:riscv32-esp-elf-gdb@14.2_20240403 downloaded                                                       
esp32:openocd-esp32@v0.12.0-esp32-20241016 downloaded                                                    
esp32:esptool_py@4.9.dev3 downloaded                                                                     
esp32:mkspiffs@0.2.3 downloaded                                                                          
esp32:mklittlefs@3.0.0-gnu12-dc7f933 downloaded                                                          
esp32:esp32@3.2.0 downloaded                                                                             
Installing esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1...
Configuring tool....
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 installed
Installing esp32:esp-x32@2411...
Configuring tool....
esp32:esp-x32@2411 installed
Installing esp32:xtensa-esp-elf-gdb@14.2_20240403...
Configuring tool....
esp32:xtensa-esp-elf-gdb@14.2_20240403 installed
Installing esp32:esp-rv32@2411...
Configuring tool....
esp32:esp-rv32@2411 installed
Installing esp32:riscv32-esp-elf-gdb@14.2_20240403...
Configuring tool....
esp32:riscv32-esp-elf-gdb@14.2_20240403 installed
Installing esp32:openocd-esp32@v0.12.0-esp32-20241016...
Configuring tool....
esp32:openocd-esp32@v0.12.0-esp32-20241016 installed
Installing esp32:esptool_py@4.9.dev3...
Configuring tool....
esp32:esptool_py@4.9.dev3 installed
Installing esp32:mkspiffs@0.2.3...
Configuring tool....
esp32:mkspiffs@0.2.3 installed
Installing esp32:mklittlefs@3.0.0-gnu12-dc7f933...
Configuring tool....
esp32:mklittlefs@3.0.0-gnu12-dc7f933 installed
Installing platform esp32:esp32@3.2.0...
Configuring platform....
Platform esp32:esp32@3.2.0 installed

Expected behavior

The 1.2.0 behavior

Arduino CLI version

1.2.2

Operating system

macOS

Operating system version

15.4.1

Additional context

I have not tried the nightly because the release tag is the HEAD of the master (c11b9dd), therefore, it must be the same as the nightly:

./arduino-cli version
arduino-cli  Version: 1.2.2 Commit: c11b9dd5 Date: 2025-04-22T13:51:07Z

I have tested the CLI only with the ESP32 core installation. I did not try to install any other cores. (Related #2899 (comment))

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the nightly build
• My report contains all necessary details

[AlainF-ing]

I have the same issue with ESP32 core only.
I use 2 other cores ESP8266 and Rp2040 installed using script at the same time without any error.
I have this issue on Bookworm (latest) on Raspberry Pi 4B
I have tried my script on Fedora Workstation 42 Beta same error only 2 cores installed without timeout. ESP32 core can not install.

[alessio-perugini]

I suspect it is related to the fix #2889 that correctly honors the patch done in v1.1.0 (#2770)

Can you try it by increasing the default timeout from 60s to 180s?
arduino-cli config set network.connection_timeout 180s

If this is confirmed, we should probably increase the default timeout

[kittaakos]

Thank you!

If this is confirmed

Confirmed. Increasing the timeout works.

kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % rm -rf ~/Library/Arduino15/packages/esp32 
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % rm -rf ~/Library/Arduino15/staging       
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 downloaded                                                                            
esp32:esp-x32@2411 downloaded                                                                                                               
esp32:xtensa-esp-elf-gdb@14.2_20240403 downloaded                                                                                           
esp32:esp-rv32@2411 net/http: request canceled (Client.Timeout or context cancellation while reading body)                                  
Error during install: net/http: request canceled (Client.Timeout or context cancellation while reading body)
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % rm -rf ~/Library/Arduino15/staging
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % rm -rf ~/Library/Arduino15/packages/esp32
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli config set network.connection_timeout 180s
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli config dump                               
network:
    connection_timeout: 180s

kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % ./arduino-cli core install esp32:esp32 --additional-urls https://espressif.github.io/arduino-esp32/package_esp32_index.json
Tool arduino:dfu-util@0.11.0-arduino5 already installed
Downloading packages...
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 downloaded                                                                            
esp32:esp-x32@2411 downloaded                                                                                                               
esp32:xtensa-esp-elf-gdb@14.2_20240403 downloaded                                                                                           
esp32:esp-rv32@2411 downloaded                                                                                                              
esp32:riscv32-esp-elf-gdb@14.2_20240403 downloaded                                                                                          
esp32:openocd-esp32@v0.12.0-esp32-20241016 downloaded                                                                                       
esp32:esptool_py@4.9.dev3 downloaded                                                                                                        
esp32:mkspiffs@0.2.3 downloaded                                                                                                             
esp32:mklittlefs@3.0.0-gnu12-dc7f933 downloaded                                                                                             
esp32:esp32@3.2.0 downloaded                                                                                                                
Installing esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1...
Configuring tool....
esp32:esp32-arduino-libs@idf-release_v5.4-2f7dcd86-v1 installed
Installing esp32:esp-x32@2411...
Configuring tool....
esp32:esp-x32@2411 installed
Installing esp32:xtensa-esp-elf-gdb@14.2_20240403...
Configuring tool....
esp32:xtensa-esp-elf-gdb@14.2_20240403 installed
Installing esp32:esp-rv32@2411...
Configuring tool....
esp32:esp-rv32@2411 installed
Installing esp32:riscv32-esp-elf-gdb@14.2_20240403...
Configuring tool....
esp32:riscv32-esp-elf-gdb@14.2_20240403 installed
Installing esp32:openocd-esp32@v0.12.0-esp32-20241016...
Configuring tool....
esp32:openocd-esp32@v0.12.0-esp32-20241016 installed
Installing esp32:esptool_py@4.9.dev3...
Configuring tool....
esp32:esptool_py@4.9.dev3 installed
Installing esp32:mkspiffs@0.2.3...
Configuring tool....
esp32:mkspiffs@0.2.3 installed
Installing esp32:mklittlefs@3.0.0-gnu12-dc7f933...
Configuring tool....
esp32:mklittlefs@3.0.0-gnu12-dc7f933 installed
Installing platform esp32:esp32@3.2.0...
Configuring platform....
Platform esp32:esp32@3.2.0 installed
kittaakos@Akoss-MacBook-Pro-2 esp32-coredump-guide % 

It's not a bug, and I will close this issue.

[AlainF-ing]

Sorry guys for the delay.
This fix is working
ESP32 core v 3.2.0 has been installed, esp32:esp-x32@2411 downloaded is 560 Mb and downloaded ok.

Thanks for your help

[nuclearcat]

Hit this bug as well, i think many users with moderate connection (1-2Mb/s) will be affected by default timeout too low.