Original : https://chowdera.com/2022/142/202205221434279078.html

problem

ESP32 adopt SPI link W5100 and W5500 Ethernet module , use Ethernet There are always errors in the library . stay ESP32 When the side is used as a server, the compilation cannot pass , As a client, you can . From the hint, it’s one of them Server.h There’s something wrong with the document .

resolvent

open Server.h file , Modify as follows ：