Problem with compiling with Arduino and Big Sur and esptool.py (ESPTOOL-261)

[roontoon]

Operating system

Mac OS 11.4 Big Sur

Python version

Python 3.9.5

What Chip

ESP32-WROOM-32

What development board or other hardware is the chip attached to

ESP32-DEVKITC-32UE

Is anything else attached to the development board, except for the serial flasher connections?

No

Are you running esptool.py from an IDE such as Arduino or Eclipse?

Arduino 1.8.15

Full esptool.py command line that was run:

N/A via IDE

Full output from esptool.py

Arduino: 1.8.15 (Mac OS X), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

Traceback (most recent call last):
File "esptool.py", line 57, in
File "/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 389, in load_module
File "serial/tools/list_ports.py", line 29, in
File "/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 389, in load_module
File "serial/tools/list_ports_posix.py", line 31, in
File "/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 389, in load_module
File "serial/tools/list_ports_osx.py", line 32, in
ValueError: dlsym(RTLD_DEFAULT, kIOMasterPortDefault): symbol not found
Failed to execute script esptool
Multiple libraries were found for "WiFi.h"
Used: /Users/roontoon/Library/Arduino15/packages/esp32/hardware/esp32/1.0.4/libraries/WiFi
Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi
exit status 255
/Applications/Arduino.app/Contents/Java/arduino-builder returned 255
Error compiling for board ESP32 Dev Module.

Do you have any other information from investigating this?

I have fully deleted the install of Arduino 1.8.15 and all associated files and reinstalled, updated Python to the most current version.

Is there any other information you can think of which will help us reproduce this problem?

[dobairoland]

Hi @roontoon. This issue has already been fixed for esptool by a workaround (if you specify a port then the issue is prevented to happen), by a pyserial update and a fix on the MacOS side. Please see #540 for further details.

Please look for a solution in https://github.com/espressif/arduino-esp32 and report the issue there if you cannot find one.

[dobairoland]

Here is the related Arduino issue: espressif/arduino-esp32#4408