sqlite on react-native android

just trying to install react-native-sqlite on react-native android

but get these error log

Unable to resolve module ./node_modules/react-native-sqlite/sqlite3 from /TestAndroid/Auth.js
Unable to resolve module RCTDeviceEventEmitter from /TestAndroid/node_modules/react-native-sqlite/sqlite3.ios.js
transforming [========================================] 100% 336/336
[11:57:10] <START> find dependencies
[11:57:10] <END>   find dependencies (95ms)
[11:57:10] <START> transform
[11:57:11] <END>   transform (259ms)
::ffff:127.0.0.1 - - [Mon, 21 Sep 2015 03:57:14 GMT] "GET /flow/ HTTP/1.1" 404 - "-" "okhttp/2.4.0"
[11:57:13] <START> request:/index.android.bundle?platform=android
[11:57:13] <END>   request:/index.android.bundle?platform=android (7ms)
[11:57:14] <START> request:/index.android.map?platform=android
[11:57:14] <END>   request:/index.android.map?platform=android (48ms)

this is my first react-native andorid app, did I miss any step on installing?