React Native: Command `run-ios` unrecognized

Question

I have two different ReactNative-Projects:

• a) a project from januar 2016
• b) a complete new react-native project from now (march 20th 2016)

Answer 1

 $ react-native run-ios

If you get this kinda error:

"Command run-ios unrecognized. Make sure that you have run npm install and that you are inside a react-native project".

In terminal, make sure you are inside a react-native project directory.

Execute this cmd:

$ react-native -v
react-native-cli: 2.0.1
react-native: n/a - not inside a React Native project directory
$ npm update
$ react-native -v
react-native-cli: 2.0.1
react-native: 0.44.0
$ react-native run-ios

Answer 2

For me, Xcode was already running.

Close the Xcode and then in the terminal, make sure you are inside a react-native project directory and then execute react-native run-ios command