[root@localhost bahmni-frontend-main]# yarn --version 1.22.18 [root@localhost bahmni-frontend-main]# npm --version 6.14.12 [root@localhost bahmni-frontend-main]# yarn start yarn run v1.22.18 $ lerna run start --parallel /bin/sh: lerna: command not found error Command failed with exit code 127. info Visit yarn run | Yarn for documentation about this command.