ttn.otaa compiling error

[appsheld]

arduino compiling error of ttn-otaa with wemos lolin32 and 868MHz SX1276 LoRa Breakout Board (ean 4251551312302, ASIN‏ : ‎ B084NWDFH1):

c:/users/xxx/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:\Users\Andreas\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0/tools/sdk/esp32/lib\libpp.a(hal_mac.o): in function hal_init': (.text.hal_init+0xc8): multiple definition of hal_init'; libraries\MCCI_LoRaWAN_LMIC_library\hal\hal.cpp.o:C:\Users\Andreas\OneDrive\Dokumente\Arduino\libraries\MCCI_LoRaWAN_LMIC_library\src\hal/hal.cpp:416: first defined here
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board WEMOS LOLIN32.

[mdede439]

I have the same issue using the TTGO LoRa32-OLED V1 board.

[mdede439]

c:/users/---/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/gcc8_4_0-esp-2021r1/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:\Users\Harley\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.0/tools/sdk/esp32/lib\libpp.a(hal_mac.o): in function hal_init': (.text.hal_init+0xc8): multiple definition of hal_init'; libraries\MCCI_LoRaWAN_LMIC_library\hal\hal.cpp.o:C:\1Projects\Arduino IDE Sketchbook LoRa\libraries\MCCI_LoRaWAN_LMIC_library\src\hal/hal.cpp:416: first defined here
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board TTGO LoRa32-OLED V1.

[santaimpersonator]

Sounds like a duplicate of this issue: #714

[mdede439]

Yes it is @santaimpersonator. I found that post after my initial comment here and was able to resolve my issue easily.

Thanks for your comment!

[terrillmoore]

I'm going to close this issue; it's a duplicate of #714. Also, it's not a bug, strictly speaking, but I agree it needs attention.