How to change package name in Unity3d

Question

Recently i create my first app and the create an apk file to upload on goolge play. after uploading google saied uploading is failed because :

Upload failed
 You uploaded an APK that was signed in debug mode. You need to sign your APK    in release mode. Learn more about signing.
You need to use a different package name because "com.jirbo.unitytest" already exists in Google Play.

so my question is how to i change com.jirbo.unitytest to my company package name ?

Answer 1

1. Press Control + Shift + B or (Command Shift + B, MacOSX) to show the build setting dialog

2. Select Android on the left;
3. Click "Player Settings" Button
4. In the inspector, scroll down to Other Settings, change the Bundle identifier there.