//install missing packages using npm install from your project directory path
>npm install
Open project in Android studio and create virtual device in AVD Manager with following properties
Before apk build command run you need to Launch created AVD in emulator
1. Check/Set system variables properly for JAVA and sdk
2. Also check svn.exe path in Android studio->file->settings->version control->subversion->use command line client
Verify that path matches with your svn.exe path.
After run following command for build apk
>react-native run-android
react-native run-android will automatically start Node.js
When Node.js bundling index.android.js done it will start emulator
cd android && gradlew clean - for clean project
react-native eject - for recreates the android and ios folder
react-native cli - used to generate new project
npm install –g react-native-cli - install react-native globally