Undefined reference to 'dhcp_set_dns'

[Thousif10]

c:/users/user/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\user\AppData\Local\Temp\arduino-sketch-B2DFF35DFBCC04C8720AC622751D0BA2\sketch\ESP8266_Router_Honeypot.ino.cpp.o:(.text.setup+0x5c): undefined reference to dhcps_set_dns' c:/users/user/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\user\AppData\Local\Temp\arduino-sketch-B2DFF35DFBCC04C8720AC622751D0BA2\sketch\ESP8266_Router_Honeypot.ino.cpp.o: in function _ZN14HardwareSerial5beginEm':
C:\Users\user\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/HardwareSerial.h:76: undefined reference to dhcps_set_dns' c:/users/user/appdata/local/arduino15/packages/esp8266/tools/xtensa-lx106-elf-gcc/3.0.4-gcc10.3-1757bed/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: C:\Users\user\AppData\Local\Temp\arduino-sketch-B2DFF35DFBCC04C8720AC622751D0BA2\sketch\ESP8266_Router_Honeypot.ino.cpp.o: in function setup':
C:\Users\user\Documents\Arduino\ESP8266_Router_Honeypot-main\ESP8266_Router_Honeypot/ESP8266_Router_Honeypot.ino:56: undefined reference to `dhcps_set_dns'
collect2.exe: error: ld returned 1 exit status

[coryjfowler]

I have the same issue.

[coryjfowler]

#4