Linking everything together... "D:\\Documenti\\ArduinoData\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-80-g6c4433a-5.2.0/bin/xtensa-esp32-elf-gcc" -nostdlib "-LD:\\Documenti\\ArduinoData\\packages\\esp32\\hardware\\esp32\\1.0.4/tools/sdk/lib" "-LD:\\Documenti\\ArduinoData\\packages\\esp32\\hardware\\esp32\\1.0.4/tools/sdk/ld" -T esp32_out.ld -T esp32.common.ld -T esp32.rom.ld -T esp32.peripherals.ld -T esp32.rom.libgcc.ld -T esp32.rom.spiram_incompatible_fns.ld -u ld_include_panic_highint_hdl -u call_user_start_cpu0 -Wl,--gc-sections -Wl,-static -Wl,--undefined=uxTopUsedPriority -u __cxa_guard_dummy -u __cxx_fatal_exception -Wl,--start-group "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\sketch\\BMELora_3.ino.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Wire\\Wire.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\SPI\\SPI.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_Unified_Sensor\\Adafruit_Sensor.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BME680_Library\\bme680.c.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BME680_Library\\Adafruit_BME680.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BME280_Library\\Adafruit_BME280.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Heltec_ESP32_Dev-Boards\\heltec.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Heltec_ESP32_Dev-Boards\\lora\\LoRa.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Heltec_ESP32_Dev-Boards\\oled\\OLEDDisplay.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Heltec_ESP32_Dev-Boards\\oled\\OLEDDisplayUi.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_VEML6075_Library\\Adafruit_VEML6075.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BusIO\\Adafruit_BusIO_Register.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BusIO\\Adafruit_I2CDevice.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859\\libraries\\Adafruit_BusIO\\Adafruit_SPIDevice.cpp.o" "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_cache_433198\\core\\core_8c9d0aa2c2c256db948d4589ce0b6317.a" -lgcc -lesp32 -lphy -lesp_http_client -lmbedtls -lrtc -lesp_http_server -lbtdm_app -lspiffs -lbootloader_support -lmdns -lnvs_flash -lfatfs -lpp -lnet80211 -ljsmn -lface_detection -llibsodium -lvfs -ldl_lib -llog -lfreertos -lcxx -lsmartconfig_ack -lxtensa-debug-module -lheap -ltcpip_adapter -lmqtt -lulp -lfd -lfb_gfx -lnghttp -lprotocomm -lsmartconfig -lm -lethernet -limage_util -lc_nano -lsoc -ltcp_transport -lc -lmicro-ecc -lface_recognition -ljson -lwpa_supplicant -lmesh -lesp_https_ota -lwpa2 -lexpat -llwip -lwear_levelling -lapp_update -ldriver -lbt -lespnow -lcoap -lasio -lnewlib -lconsole -lapp_trace -lesp32-camera -lhal -lprotobuf-c -lsdmmc -lcore -lpthread -lcoexist -lfreemodbus -lspi_flash -lesp-tls -lwpa -lwifi_provisioning -lwps -lesp_adc_cal -lesp_event -lopenssl -lesp_ringbuf -lfr -lstdc++ -Wl,--end-group -Wl,-EL -o "C:\\Users\\User\\AppData\\Local\\Temp\\arduino_build_595859/BMELora_3.ino.elf" C:\Users\User\AppData\Local\Temp\arduino_build_595859\sketch\BMELora_3.ino.cpp.o:(.literal.startup._GLOBAL__sub_I_transmissiontime+0x14): undefined reference to `Bsec::Bsec()' C:\Users\User\AppData\Local\Temp\arduino_build_595859\sketch\BMELora_3.ino.cpp.o: In function `_GLOBAL__sub_I_transmissiontime': D:\Documenti\Arduino\BMELora_3/BMELora_3.ino:20: undefined reference to `Bsec::Bsec()' collect2.exe: error: ld returned 1 exit status Uso la libreria Wire alla versione 1.0.1 nella cartella: D:\Documenti\ArduinoData\packages\esp32\hardware\esp32\1.0.4\libraries\Wire Uso la libreria SPI alla versione 1.0 nella cartella: D:\Documenti\ArduinoData\packages\esp32\hardware\esp32\1.0.4\libraries\SPI Uso la libreria Adafruit_Unified_Sensor alla versione 1.1.2 nella cartella: D:\Documenti\Arduino\libraries\Adafruit_Unified_Sensor Uso la libreria Adafruit_BME680_Library alla versione 1.0.7 nella cartella: D:\Documenti\Arduino\libraries\Adafruit_BME680_Library Uso la libreria Adafruit_BME280_Library alla versione 2.0.1 nella cartella: D:\Documenti\Arduino\libraries\Adafruit_BME280_Library Uso la libreria BSEC_Software_Library alla versione 1.5.1474 nella cartella: D:\Documenti\Arduino\libraries\BSEC_Software_Library Uso la libreria Heltec_ESP32_Dev-Boards alla versione 1.0.9 nella cartella: D:\Documenti\Arduino\libraries\Heltec_ESP32_Dev-Boards Uso la libreria Adafruit_VEML6075_Library alla versione 2.0.0 nella cartella: D:\Documenti\Arduino\libraries\Adafruit_VEML6075_Library Uso la libreria Adafruit_BusIO alla versione 1.2.1 nella cartella: D:\Documenti\Arduino\libraries\Adafruit_BusIO exit status 1 Errore durante la compilazione per la scheda Heltec WiFi LoRa 32(V2).
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