Voice Control Light

I need someone to assist me, I am using an ELEGOO Mega 2560 and trying to replicate the https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p093/electricity-electronics/arduino-voice-controlled-lamp voice controlled lamp project for my son's science experiment. I am running into a problem downloading the code from https://github.com/elechouse/VoiceRecognitionV3.git I keep getting an error "Compilation error: exit status 1" and cannot find a way around it.