Compile LD error undefined reference to `vtable for BaseLoRa'

[kigik]

I have trouble builing the example SX126x_LoRa_receiver_listen, with ESP32 Dev Module, esp32 3.0.0 version hardware
but fail, and it outputs:
...\libraries\LoRaRF\SX126x.cpp.o:(.literal._ZN6SX126xC2Ev+0x0): undefined reference to `vtable for BaseLoRa'
collect2.exe: error: ld returned 1 exit status
Is there something need modify with this example.

[LithosphereRocketry]

I also have this issue on STM32duino, although only in debug mode and not release mode.

[LithosphereRocketry]

I think I've located the issue - the BaseLora class is using virtual functions in an unsafe way that some compilers & compiler settings sweep under the rug but others are pickier about. It can be fixed by setting the functions in that class to pure-virtual like in this diff:
LithosphereRocketry@ddbb43d

[kigik]

Oh，just a issue with cplusplus, thank you a lot!