Hello, welcome to the Buildbox forum, please see several tutorials before asking questions. https://www.buildbox.com/tutorials/ https://www.buildbox.com/buildbox-1-tutorials/ https://www.buildbox.com/guides/ https://www.buildbox.com/manual/ And very important, use the search engine. For BB 2.2.x, Eclipse and Java JDK 1.7 For BB 2.3.x, Android Studio and Java JDK 1.8