- 2019.08.16 -- 안드로이드 스튜디오 설치하기. (Installing Android Studio on Windows OS) 20
- 2017.04.07 -- sdk build tools revision is too low for project.
- 2016.12.13 -- No resource identifier found for attribute 'layout_behavior' in package
- 2016.09.26 -- No changes to deploy. (Instant Run)