Hi,

I have downloaded the source code for Chapter 4 - To Do List and imported it to Eclipse, but there are errors everywhere:
http://blubox.no/_zipped/c4.gif

What is wrong?!

Thanks:)

Have you got the SDK? If yes, you can find the android.jar file at the path: SDK_root/platforms/android-n/, we'll use this file later.
You just lost the Build Path of this project, and you can add it follow these:
==> Right-click on your project and select "Build Path" -> "Add External Archives...", then choose the previous android.jar file, OK!
Good luck!