auto adjuster cable needs resetting, had the same after replacing the metal clip that secures cable to clutch lever with a new one (old one broke and clutch cable slipped out -clutch pedal fully to the floor).
if i remember corretly you need to push down 3 times to set it correctly, then press clutch pedal and it should work after 1-2 times.
there is no need to pump at pedal as it's nothing hydraulic that you could bleed.