R.java not being generated for new Android project

Question

When I create a new android project in Eclipse, and I choose to have a default main activity, my R.java file does not get generated.

I have seen some questions online and on this site about R.java not being generated but all are due to some manual action/mistake that had to be corrected during the development of the application.

However, does anyone know why R.java would not get generated for a brand new android project, where I have made no manual modifications whatsoever?

Answer 1

I think your problem is just the latest update of the SDK.

Test the following operations on two projects :

• In the project properties (eclipse) -> java build path -> order and export make sure that all your jars in the libs folder are checked.
• And "Android Tools -> Fix Project Properties"
• And "Project -> Clean"

I hope you have helped!

Answer 2

ADT version 22 requires that you install "build tools". To get it to work i had to update:

• SDK Tools
• Platform Tools

Then install:

• Build Tools

This link recommends you add build tools to your environment path. I had to do the following before the R.java was generated:

1. Append build tools to PATH environment variable
2. Restart Eclipse.