1. git clone https://github.com/queky18/Basic_react_native.git
2. cd ./bowlens
3. npm install
4. react-native run-android / react-native run-ios
If you encounter problems on windows, probably you have react-native version 56 or 57.
#Solution
1. C:\WINDOWS\system32>npm uninstall -g react-native-cli
2. npm install react-native@0.55.4
3. npm install -g react-native-cli@1.2.0
4. react-native init --version="0.55.4" myprojectname