[Unity] Unity Build Error_Bundle Identifier has not been set up correctly

만약 유니티 빌드 시 다음과 같은 에러가 난다면,

Error building Player : UnityException:Bundle Identifer has not been set up correctly
Please set the Bundle Identifer in the Player Settings. The value must follow the convention 'com.YouCompanyName.YourProductName' and can contain alphanumeric characters and underscore.

[File]->[Build Settings] -> [Player Settings...]

[Other Settings]-> [Bundle Identifier]를 설정 후 다시 빌드진행!