ESP32 compiling problem

Hi Ron.
What’s exactly the error you’re getting?
Can you provide more details? Otherwise, it is very difficult to find out what might be wrong.
Regards,
Sara

OneWire.cpp:(.text._ZN7OneWire11check_crc16EPKhtS1_t+0x0): multiple definition of `OneWire::check_crc16(unsigned char const*, unsigned short, unsigned char const*, unsigned short)’
C:\Users\rktut\AppData\Local\Temp\arduino_build_392761\libraries\OneWire\OneWire.cpp.o:OneWire.cpp:(.text._ZN7OneWire11check_crc16EPKhtS1_t+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
Using library OneWire at version 2.3.4 in folder: C:\Users\rktut\OneDrive\Documents\Arduino\libraries\OneWire
Using library DallasTemperature at version 3.7.9 in folder: C:\Users\rktut\OneDrive\Documents\Arduino\libraries\DallasTemperature
exit status 1
Error compiling for board DOIT ESP32 DEVKIT V1.

Hi Ron.

That error means that you have the OneWire library installed two times.

In this directory: C:\Users\rktut\AppData\Local\Temp\arduino_build_392761\libraries\OneWire\OneWire.cpp

and this one
C:\Users\rktut\OneDrive\Documents\Arduino\libraries\OneWire

Remove the library from the
C:\Users\rktut\AppData\Local\Temp\arduino_build_392761\libraries\OneWire\OneWire.cpp directory.

Regards,
Sara

THANK  YOU!!   Problem solved.
Ron