I was finishing up the "Hello World" tutorial in Eclipse (with the ADT plugin) and apparently, you are supposed to rename the string resource "hello" with "Hello Android, I am a string resource". Well, Java.Lang.NullPointerException pops up with four, "An error has occurred. See error log for details." There is nothing in the error log! For every letter I type to rename it, Java.Lang.NullpointerException pops up and I have no clue what is wrong. I don't have any other errors or problems with my code. Does it have something to do with the "missing" gen file, because I had to change my Java to 1.6 to solve that... Maybe I need an update?
I got the same problem. I found a solution here: http://androidforums.com/developer-101/112731-problems-getting-eclipse-android-installed.html
Just replace your resources tag with the following:
<resources xmlns:android="http://schemas.android.com/apk/res/android">
Restart Eclipse.