Help with code regarding rtl8720dn

hi i'm new to arduino, been exploring and studying it for a while and alrdy done a successful esp32 project with it and now i'm doing a rtl8720dn project and i'm stuck at this error when compiling, hope someone could help me... thanks in advance

.....Local\arduino\sketches\4AFEF3AC04D9DA328C59356D45DB42FD\sketch\RTL8720dn-Deauther.ino.cpp.o: In function loop': RTL8720dn-Deauther.ino.cpp:(.text.loop+0x94): undefined reference to wifi_tx_deauth_frame(void*, void*, unsigned short)'
collect2.exe: error: ld returned 1 exit status

exit status 1

Compilation error: exit status 1

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