How to generate R.java

Question

I downloaded few source codes from Google source codes.

I executed them on Eclipse but R.java file is not created and therefore I got many errors saying

Answer 1

• Open Android SDK Manager
• Tick Tools that there are 3 packages of Android SDK Tools , delete and install them again.
• When they are finished, please refresh your project in Package Explorer.

You will see BuildConfig.java and R.java in /gen

I think you wanna need that I recommend this comment

Enjoy with your building app.