package.json
"dependencies": {
"expo": "^21.0.0",
"react": "16.0.0-alpha.12",
"react-native": "https://github.com/expo/react-native/archive/sdk-21.0.2.tar.gz"
}
console
$ exp build:ios
[exp] Making sure project is set up correctly...
[exp] Your project looks good!
[exp] Checking if current build exists...
[exp] No currently active or previous builds for this project.
[exp] Checking for existing Apple credentials...
[exp] Validating Apple credentials...
[exp] Credentials valid.
[exp] Validating distribution certificate...
[exp] Validating app id...
[exp] Validating push certificate...
[exp] Starting build process...
[exp] Unable to find an existing exp instance for this directory, starting a new one...
[exp] Starting React Native packager...
[exp] Scanning folders for symlinks in /Users/user/projects/sc-build/node_modules (9ms)
[exp] error: unknown option `--package'