R file is missing android

Question

i was using Eclipse Helios but due to performance issues i changed to Eclipse Galileo and installed the ADT plugging, and added my sdk folder to Elcipse Preferences. Now R.j

Answer 1

Try unclicking and re-clicking build project automatically in the project dropdown, closing the program each time. There have been know bugs about this for a while but there's not always a set fix.

When it once happened to me it turned out it was because i'd named an .xml file with a capital letter. Worth checking.