Fourier::fpopt
InverseFourier::fpopt
An error occurs because Automatic is not a valid value for the FourierParameters option:
Fourier[{2.3, 1.7, 5.9, 1.4, 2.1}, FourierParameters -> Automatic]This shows a valid value for the FourierParameters option in Fourier:
Fourier[{2.3, 1.7, 5.9, 1.4, 2.1}, FourierParameters -> {-1, 1}]