Latest Arduino (1.8.10) cannot program 32u4-based boards under Catalina (Rel. 10.15 Build 19A583)

[MarqueIV]

Just downloaded and upgraded to the released version of macOS 10.5 Catalina (build 19A583) along with the latest official release of Arduino (1.8.10). I'm using an official (i.e. not a clone) Arduino Micro. Ever since doing so, I can not upload.

Here is the sketch...

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
}

int value = LOW;

void loop() {
  
  value = value == HIGH
    ? LOW
    : HIGH;
  
  digitalWrite(LED_BUILTIN, value); // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait
}

The app compiles, but as soon as the upload begins (the light 'breathes' on the device) I get the below.

Note: I also tried the cloud editor with the plugin (again, latest as of tonight) but that didn't work either. Those results are under these ones.

RESULTS FROM THE ARDUINO IDE:

Arduino: 1.8.10 (Mac OS X), Board: "Arduino/Genuino Micro"

/Applications/Arduino.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware /Applications/Arduino.app/Contents/Java/hardware -hardware /Users/marqueiv/Library/Arduino15/packages -tools /Applications/Arduino.app/Contents/Java/tools-builder -tools /Applications/Arduino.app/Contents/Java/hardware/tools/avr -tools /Users/marqueiv/Library/Arduino15/packages -built-in-libraries /Applications/Arduino.app/Contents/Java/libraries -libraries /Users/marqueiv/Code/Arduino/libraries -fqbn=arduino:avr:micro -vid-pid=0X2341_0X8037 -ide-version=10810 -build-path /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795 -warnings=all -build-cache /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_cache_222239 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -verbose /Users/marqueiv/Desktop/DeleteMe/Blink/Blink.ino
/Applications/Arduino.app/Contents/Java/arduino-builder -compile -logger=machine -hardware /Applications/Arduino.app/Contents/Java/hardware -hardware /Users/marqueiv/Library/Arduino15/packages -tools /Applications/Arduino.app/Contents/Java/tools-builder -tools /Applications/Arduino.app/Contents/Java/hardware/tools/avr -tools /Users/marqueiv/Library/Arduino15/packages -built-in-libraries /Applications/Arduino.app/Contents/Java/libraries -libraries /Users/marqueiv/Code/Arduino/libraries -fqbn=arduino:avr:micro -vid-pid=0X2341_0X8037 -ide-version=10810 -build-path /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795 -warnings=all -build-cache /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_cache_222239 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -verbose /Users/marqueiv/Desktop/DeleteMe/Blink/Blink.ino
Using board 'micro' from platform in folder: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr
Using core 'arduino' from platform in folder: /Applications/Arduino.app/Contents/Java/hardware/arduino/avr
Detecting libraries used...
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10810 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/variants/micro /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/sketch/Blink.ino.cpp -o /dev/null
Generating function prototypes...
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10810 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/variants/micro /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/sketch/Blink.ino.cpp -o /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/preproc/ctags_target_for_gcc_minus_e.cpp
/Applications/Arduino.app/Contents/Java/tools-builder/ctags/5.8-arduino11/ctags -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/preproc/ctags_target_for_gcc_minus_e.cpp
Compiling sketch...
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10810 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino -I/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/variants/micro /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/sketch/Blink.ino.cpp -o /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/sketch/Blink.ino.cpp.o
Compiling libraries...
Compiling core...
Using precompiled core: /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_cache_222239/core/core_arduino_avr_micro_51f02b7210b938436b779d1c032618e1.a
Linking everything together...
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-gcc -Wall -Wextra -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega32u4 -o /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.elf /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/sketch/Blink.ino.cpp.o /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/../arduino_cache_222239/core/core_arduino_avr_micro_51f02b7210b938436b779d1c032618e1.a -L/var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795 -lm
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.elf /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.eep
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy -O ihex -R .eeprom /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.elf /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.hex
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avr-size -A /var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.elf
Sketch uses 3960 bytes (13%) of program storage space. Maximum is 28672 bytes.
Global variables use 149 bytes (5%) of dynamic memory, leaving 2411 bytes for local variables. Maximum is 2560 bytes.
Forcing reset using 1200bps open/close on port /dev/cu.usbmodem141401
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/cu.usbmodem141401, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, /dev/tty.usbmodem141401, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/cu.usbmodem141401, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, /dev/tty.usbmodem141401, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/cu.usbmodem141401, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, /dev/tty.usbmodem141401, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } => {}
PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/cu.MALS, /dev/cu.SOC, /dev/cu.usbmodem141401, /dev/tty.Bluetooth-Incoming-Port, /dev/tty.MALS, /dev/tty.SOC, /dev/tty.usbmodem141401, } => {/dev/cu.usbmodem141401, /dev/tty.usbmodem141401, }
Found upload port: /dev/cu.usbmodem141401
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -patmega32u4 -cavr109 -P/dev/cu.usbmodem141401 -b57600 -D -Uflash:w:/var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino_build_144795/Blink.ino.hex:i 

avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
         User configuration file is "/Users/marqueiv/.avrduderc"
         User configuration file does not exist or is not a regular file, skipping

         Using Port                    : /dev/cu.usbmodem141401
         Using Programmer              : avr109
         Overriding Baud Rate          : 57600
         AVR Part                      : ATmega32U4
         Chip Erase delay              : 9000 us
         PAGEL                         : PD7
         BS2                           : PA0
         RESET disposition             : dedicated
         RETRY pulse                   : SCK
         serial program mode           : yes
         parallel program mode         : yes
         Timeout                       : 200
         StabDelay                     : 100
         CmdexeDelay                   : 25
         SyncLoops                     : 32
         ByteDelay                     : 0
         PollIndex                     : 3
         PollValue                     : 0x53
         Memory Detail                 :

                                  Block Poll               Page                       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           eeprom        65    20     4    0 no       1024    4      0  9000  9000 0x00 0x00
           flash         65     6   128    0 yes     32768  128    256  4500  4500 0x00 0x00
           lfuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
           hfuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
           efuse          0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
           lock           0     0     0    0 no          1    0      0  9000  9000 0x00 0x00
           calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
           signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00

         Programmer Type : butterfly
         Description     : Atmel AppNote AVR109 Boot Loader

Connecting to programmer: .avrdude: butterfly_recv(): programmer is not responding

avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: ser_drain(): read error: Device not configured
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
Found programmer: Id = "#!����"; type = �
    Software Version = �.�; Hardware Version = �.�
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: error: buffered memory access not supported. Maybe it isn't
the selected serial port avrdude: butterfly_recv(): programmer is not responding
 does not exist or your board is not connected
a butterfly/AVR109 but a AVR910 device?
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: error: programmer did not respond to command: leave prog mode
avrdude: ser_send(): write error: Device not configured
avrdude: ser_recv(): read error: Device not configured
avrdude: butterfly_recv(): programmer is not responding
avrdude: error: programmer did not respond to command: exit bootloader
avrdude: ser_close(): can't reset attributes for device: Device not configured

avrdude done.  Thank you.

---

RESULTS FROM THE ARDUINO WEB EDITOR:

/home/builder/opt/arduino-builder/arduino-builder -compile -core-api-version 10611 -hardware /home/builder/opt/arduino-builder/hardware -hardware /home/builder/.arduino15/packages -tools /home/builder/opt/arduino-builder/tools -tools /home/builder/.arduino15/packages -built-in-libraries /home/builder/opt/libraries/latest -logger humantags -fqbn arduino:avr:micro -build-cache /tmp -build-path /tmp/540981516/build -verbose -prefs runtime.tools.CMSIS-Atmel.path=/home/builder/.arduino15/packages/arduino/tools/CMSIS-Atmel/1.2.0 -prefs runtime.tools.CMSIS.path=/home/builder/.arduino15/packages/arduino/tools/CMSIS/4.5.0 -prefs runtime.tools.x86-linux-gcc.path=/home/builder/.arduino15/packages/arduino/tools/x86-linux-gcc/7.2.0 -prefs runtime.tools.bossac.path=/home/builder/.arduino15/packages/industruino/tools/bossac/1.7.0-industruino -prefs runtime.tools.arm-linux-gcc.path=/home/builder/.arduino15/packages/arduino/tools/arm-linux-gcc/4.9.3 -prefs runtime.tools.arm-none-eabi-gcc.path=/home/builder/.arduino15/packages/arduino/tools/arm-none-eabi-gcc/7-2017q4 -prefs runtime.tools.mkspiffs.path=/home/builder/.arduino15/packages/esp8266/tools/mkspiffs/2.5.0-3-20ed2b9 -prefs runtime.tools.dfu-util.path=/home/builder/.arduino15/packages/arduino/tools/dfu-util/0.9.0-arduino1 -prefs runtime.tools.linuxuploader.path=/home/builder/.arduino15/packages/arduino/tools/linuxuploader/1.5.1 -prefs runtime.tools.avr-gcc.path=/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2 -prefs runtime.tools.i586-poky-linux-uclibc.path=/home/builder/.arduino15/packages/Intel/tools/i586-poky-linux-uclibc/1.6.2+1.0 -prefs runtime.tools.core2-32-poky-linux.path=/home/builder/.arduino15/packages/Intel/tools/core2-32-poky-linux/1.6.2+1.0 -prefs runtime.tools.esptool.path=/home/builder/.arduino15/packages/esp8266/tools/esptool/2.5.0-3-20ed2b9 -prefs runtime.tools.xtensa-lx106-elf-gcc.path=/home/builder/.arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-3-20ed2b9 -prefs runtime.tools.nrf5x-cl-tools.path=/home/builder/.arduino15/packages/arduino/tools/nrf5x-cl-tools/9.3.1 -prefs runtime.tools.openocd.path=/home/builder/.arduino15/packages/Intel/tools/openocd/0.9.0+0.1 -prefs runtime.tools.avrdude.path=/home/builder/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14 -prefs runtime.tools.arduinoOTA.path=/home/builder/.arduino15/packages/arduino/tools/arduinoOTA/1.2.1 -prefs runtime.tools.flashpack.path=/home/builder/.arduino15/packages/Intel/tools/flashpack/2.0.0 -prefs runtime.tools.sketchUploader.path=/home/builder/.arduino15/packages/Intel/tools/sketchUploader/1.6.2+1.0 -prefs runtime.tools.arc-elf32.path=/home/builder/.arduino15/packages/Intel/tools/arc-elf32/1.6.9+1.0.1 -prefs runtime.tools.arduino101load.path=/home/builder/.arduino15/packages/Intel/tools/arduino101load/2.0.1 -libraries /tmp/540981516/custom -libraries /tmp/540981516/pinned /tmp/540981516/Simple_Playground

Using board 'micro' from platform in folder: /home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23

Using core 'arduino' from platform in folder: /home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23

Detecting libraries used...

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10611 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/cores/arduino -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/variants/micro /tmp/540981516/build/sketch/Simple_Playground.ino.cpp -o /dev/null

Generating function prototypes...

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10611 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/cores/arduino -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/variants/micro /tmp/540981516/build/sketch/Simple_Playground.ino.cpp -o /tmp/540981516/build/preproc/ctags_target_for_gcc_minus_e.cpp

/home/builder/opt/arduino-builder/tools/ctags/5.8-arduino11/ctags -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives /tmp/540981516/build/preproc/ctags_target_for_gcc_minus_e.cpp

Compiling sketch...

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega32u4 -DF_CPU=16000000L -DARDUINO=10611 -DARDUINO_AVR_MICRO -DARDUINO_ARCH_AVR -DUSB_VID=0x2341 -DUSB_PID=0x8037 "-DUSB_MANUFACTURER=\"Unknown\"" "-DUSB_PRODUCT=\"Arduino Micro\"" -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/cores/arduino -I/home/builder/.arduino15/packages/arduino/hardware/avr/1.6.23/variants/micro /tmp/540981516/build/sketch/Simple_Playground.ino.cpp -o /tmp/540981516/build/sketch/Simple_Playground.ino.cpp.o

Compiling libraries...

Compiling core...

Using precompiled core: /tmp/core/core_arduino_avr_micro_f73f8035d4928006c181f54a2aa5f0b0.a

Linking everything together...

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-gcc -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega32u4 -o /tmp/540981516/build/Simple_Playground.ino.elf /tmp/540981516/build/sketch/Simple_Playground.ino.cpp.o /tmp/540981516/build/../../core/core_arduino_avr_micro_f73f8035d4928006c181f54a2aa5f0b0.a -L/tmp/540981516/build -lm

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-objcopy -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 /tmp/540981516/build/Simple_Playground.ino.elf /tmp/540981516/build/Simple_Playground.ino.eep

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-objcopy -O ihex -R .eeprom /tmp/540981516/build/Simple_Playground.ino.elf /tmp/540981516/build/Simple_Playground.ino.hex

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2/bin/avr-size -A /tmp/540981516/build/Simple_Playground.ino.elf

Sketch uses 4150 bytes (14%) of program storage space. Maximum is 28672 bytes.

Global variables use 151 bytes (5%) of dynamic memory, leaving 2409 bytes for local variables. Maximum is 2560 bytes.

Programming with: Serial

Restarting in bootloader mode

Get port list before reset

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/cu.usbmodem141401 /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC /dev/tty.usbmodem141401]

Touching port /dev/cu.usbmodem141401 at 1200bps

Set DTR off

Wait for the port to disappear

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/cu.usbmodem141401 /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC /dev/tty.usbmodem141401] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

Wait for the port to reappear

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC]

[/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC] -> [/dev/cu.Bluetooth-Incoming-Port /dev/cu.MALS /dev/cu.SOC /dev/cu.usbmodem141401 /dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC /dev/tty.usbmodem141401]

Found upload port: /dev/tty.usbmodem141401

Flashing with command:/Users/marqueiv/.arduino-create/arduino/avrdude/6.3.0-arduino14/bin/avrdude -C/Users/marqueiv/.arduino-create/arduino/avrdude/6.3.0-arduino14/etc/avrdude.conf -v -patmega32u4 -cavr109 -P/dev/tty.usbmodem141401 -b57600 -D -Uflash:w:/var/folders/xf/2rw7xdq95hl5lctcbjv39w9r0000gn/T/arduino-create-agent151286532/Simple_Playground.hex:i

[facchinm]

It looks like Create is using an old version of avrdude /Users/marqueiv/.arduino-create/arduino/avrdude/6.3.0-arduino14/bin/avrdude.
The Catalina compatible ones are 6.3.0-arduino16 and 6.3.0-arduino17 which you get with AVR core 1.8.1 (bundled in IDE 1.8.10) . May you also paste the verbose output of the IDE upload phase?

[MarqueIV]

I believe it's above (the first code block). The second one was the cloud editor's output. Lemme make the separation more clear...

[facchinm]

Ok, great. I may have an idea: it looks like the port reappears with the same name after the 1200bps touch (/dev/tty.usbmodem141401) .
For some reasons maybe the bootloader is not getting recognized as a correct CDC device and the upload starts when the timeout is reached and the sketch restarted.

You may try to keep the board in bootloader mode by pressing the reset button "often" (once every 5 seconds), make sure the LED is fading, check in the meantime if the port is recognized by the OS.

Probably @gvarisco knows some dmesg-like command that can help understanding what is going on.

Thanks!

[MarqueIV]

No, the button just kicks you right out with an error. Damn. Well I do have a Windows VM which I'm gonna try to see if that works. Fingers crossed! Otherwise I'm DOA!

[CSab80]

Hello,
Same problem here with Arduino 18.1.11 and Catalina final.
For me, Arduino Leonardo is concerned.
But, with Windows 7 VM via Parallels Desktop, there is no problem...
By the way, the D13 LED smoothly blinks before the error that's mean there is a communication.
Regards,
Cyril

[MarqueIV]

Just confirmed my version of macOS is the released version, so this is going to be a critical issue for Mac users as now there's no viable Arduino solution for them short of installing Windows. Not optimal at all!

[gvarisco]

We're on it, @MarqueIV. We'll get back to you all once we are done with our findings.

[MarqueIV]

Sorry. Just whining because I'm now cut off from one of my most favorite toys! :)