I've followed these steps but I still can't create a react-native app
for MacOS
Install Homebrew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" Install Node
brew install node
Install watchman
brew install watchman
Finally install React Native CLI
npm install -g react-native-cli
/usr/local/Cellar/node/11.7.0/lib
└─┬ react-native-cli@2.0.1
├─┬ chalk@1.1.3
│ ├── ansi-styles@2.2.1
│ ├── escape-string-regexp@1.0.5
│ ├─┬ has-ansi@2.0.0
│ │ └── ansi-regex@2.1.1
│ ├─┬ strip-ansi@3.0.1
│ │ └── ansi-regex@2.1.1 deduped
│ └── supports-color@2.0.0
├── minimist@1.2.0
├─┬ prompt@0.2.14
│ ├── pkginfo@0.4.1
│ ├─┬ read@1.0.7
│ │ └── mute-stream@0.0.8
│ ├── revalidator@0.1.8
│ ├─┬ utile@0.2.1
│ │ ├── async@0.2.10
│ │ ├── deep-equal@1.0.1
│ │ ├── i@0.3.6
│ │ ├─┬ mkdirp@0.5.1
│ │ │ └── minimist@0.0.8
│ │ ├── ncp@0.4.2
│ │ └─┬ rimraf@2.6.3
│ │ └─┬ glob@7.1.3
│ │ ├── fs.realpath@1.0.0
│ │ ├─┬ inflight@1.0.6
│ │ │ ├── once@1.4.0 deduped
│ │ │ └── wrappy@1.0.2
│ │ ├── inherits@2.0.3
│ │ ├─┬ minimatch@3.0.4
│ │ │ └─┬ brace-expansion@1.1.11
│ │ │ ├── balanced-match@1.0.0
│ │ │ └── concat-map@0.0.1
│ │ ├─┬ once@1.4.0
│ │ │ └── wrappy@1.0.2 deduped
│ │ └── path-is-absolute@1.0.1
│ └─┬ winston@0.8.3
│ ├── async@0.2.10 deduped
│ ├── colors@0.6.2
│ ├── cycle@1.0.3
│ ├── eyes@0.1.8
│ ├── isstream@0.1.2
│ ├── pkginfo@0.3.1
│ └── stack-trace@0.0.10
└── semver@5.6.0