And the solution is:
changing the Server.h file in the updated library:
C:\Users\username\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0-alpha3\cores\esp32
from
virtual void begin(uint16_t port=0) =0;
to:
void begin() {};
Note that Server.h folder my vary from one to another.
For other may be:
C:\Program Files (x86)\Arduino\hardware.......\esp32
Thank you for your reply.