no probe was found error

You may encounter this error:

Running probe-run --chip nRF52840_xxAA target/thumbv7em-none-eabihf/debug/hello
Error: no probe was found
  • It may be caused by the micro-USB cable plugged on the long side of the board, instead of the short side.
  • Check that the board is powered on.
  • Check that your cable is a data cable and not power-only.