Android tutorial error: R cannot be resolved to a variable

Question

http://developer.android.com/training/basics/firstapp/building-ui.html

I have been following this tutorial, but I have two errors, both \"R cannot be resolved to a v

Answer 1

I'm working my way through the same example, and had the same (or very similar) problem.

Finally I noticed that there was a tiny little red x on the manifest.xml. Sure enough, it was complaining about this:

android:label="@string/title_activity_hello_world" >

So I added:

Hello World

to strings.xml and now it works.