react-native run-android is unrecognized

I've installed react-native-cli globally:

npm install -g react-native-cli

Then run:

react-native init AwesomeProject
cd AwesomeProject

I got the following structure:

-- AwesomeProject   
---- node_modules      
------ react-native    

When I run react-native run-android I get an error:
Command run-android unrecognized. Did you mean to run this inside a react-native project?

When I run react-native start I get the same.

react-native -v
prints:
react-native-cli: 0.2.0
react-native: n/a - not inside a React Native project directory

What I'm doing wrong?

Solution 1:

What caused this for me was running npm install --save [package] when actually the system has previously been using yarn instead of npm.

To solve this I just deleted the node_modules folder and ran: yarn install and after that react-native run-ios (or android) works fine.

(This is a duplicate of React Native: Command `run-ios` unrecognized)

Solution 2:

I just ran "yarn" with no arguments and it fixed it.