Windows 10.
Feather Sense board.
Trying to compile the simple Blink example (or even a sketch with empty setup and loop).
See errors below.
Probably some kind of library problem, but I can't figure out what. I can access (but not compile) all the examples, and the library manager seems to think everything is up-to-date.
I found that one of the undefined references was in TinyUSB, so I removed and re-installed that library, to no effect.
Thanks for any help,
PG
Code: Select all
FQBN: adafruit:nrf52:feather52840sense:debug=l2
Using board 'feather52840sense' from platform in folder: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0
Using core 'nRF5' from platform in folder: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0
Detecting libraries used...
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-g++" -mcpu=cortex-m4 -mthumb -c -g -w -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_NRF52840_FEATHER_SENSE -DARDUINO_ARCH_NRF52 "-DARDUINO_BSP_VERSION=\"1.1.0\"" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x239A -DUSB_PID=0x8087 "-DUSB_MANUFACTURER=\"Adafruit\"" "-DUSB_PRODUCT=\"Feather nRF52840 Sense\"" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=2 -DCFG_LOGGER=1 -DCFG_SYSVIEW=0 "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/Core/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/DSP/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/hal" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/mdk" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/soc" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/src" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/Source/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/GCC/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/CMSIS/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/SEGGER" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/Config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0/libraries/Adafruit_TinyUSB_Arduino/src/arduino" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\variants\\feather_nrf52840_sense" "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\sketch\\Blink.ino.cpp" -o nul
Generating function prototypes...
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-g++" -mcpu=cortex-m4 -mthumb -c -g -w -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_NRF52840_FEATHER_SENSE -DARDUINO_ARCH_NRF52 "-DARDUINO_BSP_VERSION=\"1.1.0\"" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x239A -DUSB_PID=0x8087 "-DUSB_MANUFACTURER=\"Adafruit\"" "-DUSB_PRODUCT=\"Feather nRF52840 Sense\"" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=2 -DCFG_LOGGER=1 -DCFG_SYSVIEW=0 "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/Core/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/DSP/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/hal" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/mdk" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/soc" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/src" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/Source/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/GCC/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/CMSIS/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/SEGGER" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/Config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0/libraries/Adafruit_TinyUSB_Arduino/src/arduino" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\variants\\feather_nrf52840_sense" "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\sketch\\Blink.ino.cpp" -o "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\preproc\\ctags_target_for_gcc_minus_e.cpp"
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\builtin\\tools\\ctags\\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\preproc\\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-g++" -mcpu=cortex-m4 -mthumb -c -g -w -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_NRF52840_FEATHER_SENSE -DARDUINO_ARCH_NRF52 "-DARDUINO_BSP_VERSION=\"1.1.0\"" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x239A -DUSB_PID=0x8087 "-DUSB_MANUFACTURER=\"Adafruit\"" "-DUSB_PRODUCT=\"Feather nRF52840 Sense\"" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=2 -DCFG_LOGGER=1 -DCFG_SYSVIEW=0 "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/Core/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/DSP/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/hal" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/mdk" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/soc" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/src" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/Source/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/GCC/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/CMSIS/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/SEGGER" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/Config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0/libraries/Adafruit_TinyUSB_Arduino/src/arduino" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\variants\\feather_nrf52840_sense" "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\sketch\\Blink.ino.cpp" -o "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\sketch\\Blink.ino.cpp.o"
Compiling libraries...
Compiling core...
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-g++" -mcpu=cortex-m4 -mthumb -c -g -w -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_NRF52840_FEATHER_SENSE -DARDUINO_ARCH_NRF52 "-DARDUINO_BSP_VERSION=\"1.1.0\"" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x239A -DUSB_PID=0x8087 "-DUSB_MANUFACTURER=\"Adafruit\"" "-DUSB_PRODUCT=\"Feather nRF52840 Sense\"" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=2 -DCFG_LOGGER=1 -DCFG_SYSVIEW=0 "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/Core/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/DSP/Include/" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/hal" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/mdk" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/soc" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/nrfx/drivers/src" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/nordic/softdevice/s140_nrf52_6.1.1_API/include/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/Source/include" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/GCC/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/freertos/portable/CMSIS/nrf52" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/SEGGER" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/sysview/Config" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0/libraries/Adafruit_TinyUSB_Arduino/src/arduino" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5" "-IC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\variants\\feather_nrf52840_sense" "C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\variants\\feather_nrf52840_sense\\variant.cpp" -o "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\core\\variant.cpp.o"
Using precompiled core: C:\Users\SuperD\AppData\Local\Temp\arduino\cores\adafruit_nrf52_feather52840sense_softdevice_s140v6,debug_l2_b15e77fcd061d00c9cf4d0d14a7e0692\core.a
Linking everything together...
"C:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-gcc" "-LC:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA" -Ofast -Wl,--gc-sections -save-temps "-LC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\hardware\\nrf52\\1.1.0\\cores\\nRF5/linker" -Tnrf52840_s140_v6.ld "-Wl,-Map,C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA/Blink.ino.map" -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--wrap=malloc -Wl,--wrap=free --specs=nano.specs --specs=nosys.specs -o "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA/Blink.ino.elf" "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\sketch\\Blink.ino.cpp.o" "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA\\core\\variant.cpp.o" -Wl,--start-group "-LC:\\Users\\SuperD\\AppData\\Local\\arduino15\\packages\\adafruit\\tools\\CMSIS\\5.7.0/CMSIS/DSP/Lib/GCC/" -larm_cortexM4lf_math -lm "C:\\Users\\SuperD\\AppData\\Local\\Temp\\arduino\\sketches\\D76F52576B8FD5BBB1F616249618CFBA/..\\..\\cores\\adafruit_nrf52_feather52840sense_softdevice_s140v6,debug_l2_b15e77fcd061d00c9cf4d0d14a7e0692\\core.a" -Wl,--end-group
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\Temp\arduino\sketches\D76F52576B8FD5BBB1F616249618CFBA/..\..\cores\adafruit_nrf52_feather52840sense_softdevice_s140v6,debug_l2_b15e77fcd061d00c9cf4d0d14a7e0692\core.a(main.cpp.o): in function `loop_task(void*)':
C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:57: undefined reference to `Adafruit_USBD_CDC::operator bool()'
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:57: undefined reference to `Adafruit_USBD_CDC::begin(unsigned long)'
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:57: undefined reference to `Serial'
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\Temp\arduino\sketches\D76F52576B8FD5BBB1F616249618CFBA/..\..\cores\adafruit_nrf52_feather52840sense_softdevice_s140v6,debug_l2_b15e77fcd061d00c9cf4d0d14a7e0692\core.a(main.cpp.o): in function `_write':
C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:130: undefined reference to `Adafruit_USBD_CDC::operator bool()'
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:132: undefined reference to `Serial'
c:/users/superd/appdata/local/arduino15/packages/adafruit/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\SuperD\AppData\Local\arduino15\packages\adafruit\hardware\nrf52\1.1.0\cores\nRF5/main.cpp:132: undefined reference to `Adafruit_USBD_CDC::write(unsigned char const*, unsigned int)'
collect2.exe: error: ld returned 1 exit status
exit status 1
Compilation error: exit status 1