compiling error for EXT_ADV "undefined reference to 'ble_gap_ext_connect'" on Xiao nRF52840 Sense.

[foxxoundds]

Good Morning!
Error as stated above by compiler, "collect2.exe: error: ld returned 1 exit status"

I am total noob and literally couldn't get past blink before Grok, so make of that what you will, however, this error does appear different than the hundreds of errors Grok and I have cracked until now.

Using Arm (Nim)BLE 0.4.0, NimBLE-Arduino 2.5.0.

Bootloader: Adafruit BLE (s140 v7 SoftDevice)
Nimble Debug: None
Roles: ALL

really could be anything, but I do want/need this addressed and Grok is coming up pretty empty handed on my various efforts to understand.