Error in Nodemcu while uploading using arduino

Projects Programming
1 
s/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o:(.text.setup+0x28): undefined reference to `_ZN3DHT5beginEh'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o: in function `_ZN14HardwareSerial5beginEm':
C:\Users\thisi\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/HardwareSerial.h:76: undefined reference to `_ZN3DHT5beginEh'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o: in function `setup':
C:\Users\thisi\OneDrive\Documents\Arduino\Project/Project.ino:35: undefined reference to `_ZN3DHTC1Ehhh'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\OneDrive\Documents\Arduino\Project/Project.ino:34: undefined reference to `_ZN3DHTC1Ehhh'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o:(.text.loop+0x5c): undefined reference to `_ZN3DHT12readHumidityEb'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o:(.text.loop+0x60): undefined reference to `_ZN3DHT15readTemperatureEbb'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o:(.text.loop+0xc1): undefined reference to `_ZN3DHT12readHumidityEb'
c:/users/thisi/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\thisi\AppData\Local\Temp\arduino_build_67209\sketch\Project.ino.cpp.o:(.text.loop+0xd0): undefined reference to `_ZN3DHT15readTemperatureEbb'
collect2.exe: error: ld returned 1 exit status
2

This is not an upload error but a linker error. Your topic has therefore been moved to a more suitable location on the forum.

3

These undefined references look like you have the .h file for a library but don't have the other files. It particularly looks like a DHT library. I recommend you re-install the DHT library you are using.

4

Have you done the board installation properly?

5

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