How to install the Android ADT Plugin in Eclipse?

Question

I followed the instructions on ADT Plugin for Eclipse but I got this message when installing in Eclipse:

Cannot complete the install because one or more requ         


        

Answer 1

I finally followed the instructions on During installation, there's an error about requiring org.eclipse.wst.sse.ui. How do I fix that? and installed Google Plugin for Eclipse Galileo, then the installation of Android ADT Plugin worked without any problem, finally.