Core Library Dependencies

[jscrane]

Starting with version 3.0.0, the esp32 core has refactored its libraries in a way which requires including a library's dependencies as well, e.g., to use WiFi need to include its dependency Network as well:

#include <Network.h>
#include <WiFi.h>

Otherwise the compilation will fail:

In file included from /home/steve/.arduino15/packages/esp32/hardware/esp32/3.0.1/libraries/WiFi/src/WiFiSTA.h:29,
                 from /home/steve/.arduino15/packages/esp32/hardware/esp32/3.0.1/libraries/WiFi/src/WiFi.h:33,
                 from Radar.ino:4:
/home/steve/.arduino15/packages/esp32/hardware/esp32/3.0.1/libraries/WiFi/src/WiFiGeneric.h:39:10: fatal error: Network.h: No such file or directory
   39 | #include "Network.h"
      |          ^~~~~~~~~~~
compilation terminated.
make: *** [build-targets.mk:68: Radar.ino.cpp.o] Error 1

More information here.