Unable to import example projects in eclipse from book

I am trying to import projects into the Eclipse IDE from a book "Beginning Android 2" but when I choose the root directory the "Finish" button is still grayed out. I've tried importing the project from scratch with no success, and I've also tried to create a template project with the same name and everything and then importing into that (Import existing 开发者_运维问答projects into workspace) but it always says "No projects are found to import".

The contents of the folder are: Res folder, src folder with .java file, the manifest, build, and default.properties files.

Create a new Android project. In the new-project wizard, choose the "code from existing project" radio button. Click the Browse button and pick the downloaded project directory. This will fill in the rest of this page of the wizard. Accept all the rest of the wizard defaults, and your project will be set up. You may also need to tick the checkmark next to the Android JAR file in your build path.

If you copied/unzipped the Android project into your Eclipse workspace you can select

Import > General > Existing Projects into Workspace.

That worked for me when the "Existing Android Code into Workspace" didn't. I was making a copy of a project so I could experiment without having to worry about version control or breaking something that was working.