./bin/cli marketplace create-offer -n -a 0x07351f82e433589707aece7a3cde288bf50d8452 env-printer-next-1
? Enter the price (in MESG Token) of the offer -1
? Enter the duration (in second) of the offer 10000
? Are you sure to create offer for service "env-printer-next-1" with a price of -1 MESG Tokens and a duration of 10000 seconds? Yes
number must be positive or null
s/number must be positive or null/price must be positive or zero/
s/number must be positive or null/price must be positive or zero/