R.Java is ALWAYS disappearing?

No matter what app i build it seems like开发者_StackOverflow the R.Java file always disappears no matter what!

It is fine up in till i clean the project. From there it disappears.

I have "Build Automatically" enabled as well

Does any one know how to fix this. It is starting to get very annoying!

Eclipse Android plug-in won´t generate R.java file if you have any errors in /res folder.

Check if there is under /res directory. A lot times I used to fix it by this way.

Works as designed, as it is a generated file.