Install Succeeds But Run Fails on OS X

[mmehrle]

yarn install v1.22.10
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
[4/4] 🔨  Building fresh packages...
✨  Done in 2.08s.
(base) MBP:CloudRIG michael$ yarn start
yarn run v1.22.10
$ cd gui && yarn start
$ yarn run concurrently "yarn build:lib" "cd react && yarn start" "cd electron && yarn run electron ."
error Command "concurrently" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
(base) MBP:CloudRIG michael$ 

I did install concurrently via ' sudo npm install --global concurrently' but it's still throwing the same error.