Cannot complete the install because one or more required items could not be found.Software being installed: Google Plugin for Eclipse 3.7 2.3.2.r37v201106211634

I was attempting to install the Google Plugin for Eclipse and the SDKs for Google App Engine and Google Web Toolkit today when I came across the emblazoned error mentioned in the title of this blog.

In Eclipse, I am using Helios (version 3.6) on my main PC. I forgot this, and thought I had Eclipse Indigo installed (version 3.7), which I do on another PC. In doing so, and attempting to install new software from 'Help -> Install New Software...', for the site to work with, I inadvertently selected:

 http://dl.google.com/eclipse/plugin/3.7 

which gave the error:

Cannot complete the install because one or more required items could not be found.Software being installed: Google Plugin for Eclipse 3.7 2.3.2.r37v201106211634

This was simply resolved by going back and changing the site to:

http://dl.google.com/eclipse/plugin/3.6

Then selecting the required components and clicking Next.

Problem solved. Short post, but it hopefully may help someone out there who encounters this.