errors · checkdewfpga, before anything runs

ERROR [unknown-command]: unknown command: nope. Fix: one of the commands below.

You typed dewfpga nope (a typo, or a make target such as dewfpga synth). The CLI prints the line and the help below it.

ERROR [unknown-command]: unknown command: nope. Fix: one of the commands below. https://nosey-dewdrop.github.io/dewfpga/errors/unknown-command/
dewfpga: Basys3 on macOS without Vivado.
  dewfpga install                 install the toolchain into ~/fpga (safe to re-run)

Why does it happen?

The CLI has eight commands and takes nothing else; a make target (synth, pnr) is not one of them, the CLI runs those stages itself inside bit.

What is the fix?

Pick the command from the list: sim simulates, bit builds the bitstream, flash programs the board.

dewfpga --help

Which command prints it?