Arduino: 1.8.11 (Windows 10), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

Multiple libraries were found for "WiFi.h"
 Used: C:\Users\User\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi
 Not used: C:\Program
 In file included from C:\Users\User\Documents\Arduino\libraries\async-mqtt-client-master\src/AsyncMqttClient.h:4:0,
             from C:\Users\User\Desktop\sketch_jul13a\sketch_jul13a.ino:3:

C:\Users\User\Documents\Arduino\libraries\async-mqtt-client-master\src/AsyncMqttClient.hpp:9:22: fatal error: AsyncTCP.h: No such file or directory

compilation terminated.

exit status 1
Error compiling for board ESP32 Dev Module.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
  • Not used: C:\Program - is that where you put your Arduino code, or is something going wrong with C:\Program Files (x86)? – Thomas Weller Jul 13 at 6:07
  • sir what i have to do for this ? pls tell – Arpit Jain Jul 13 at 6:49
  • i updated the ide but again it show same error – Arpit Jain Jul 13 at 7:01
  • Then install the Async TCP library, or whag ever library gives you the file AsyncTCP.h. The compiler complains, that the file is missing, so most likely you didn't install all the needed libraries – chrisl Jul 13 at 8:06
  • do what it tells you to do at the end of the printout – jsotola Jul 13 at 11:18

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.