getting the Exception on Trailhead ...Where's Astro?

There was an unhandled exception. Please reference ID: SUPCJKOK. Error: Faraday::ClientError. Message: INVALID_FIELD: and lastname = 'franklin' and astro_location__latitude__s = 37.553837 ^ ERROR at Row:1:Column:80 No such column 'astro_location__latitude__s' on entity 'Contact'. If you are attempting to use a custom field, be sure to append the '__c' after the custom field name. Please reference your WSDL or the describe call for the appropriate names.

Hi All,

 

I did start with this thread: http://boards.developerforce.com/t5/General-Development/Install-Eclipse-Juno-4-2-with-Force-com-IDE/m-p/462323/highlight/true#M72103

 

But I am still running into the same problem. Here's my setup: 

 

Here's my setup

- Running Eclipse 4.2 as Admin (downloaded from here: http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/junor) and installed to desktop.

- JAVA_HOME set to C:\Program Files\Java\jdk1.7.0_05 (upgraded from jdk1.6.0_23) downloaded from http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1637583.html

- Tried installing the Force.com IDE from the Eclipse Marketplace and got this error:

 

Cannot complete the install because one or more required items could not be found.
  Software being installed: Force.com IDE 25.0.0.201206181021 (com.salesforce.ide.feature.feature.group 25.0.0.201206181021)
  Missing requirement: Force.com IDE 25.0.0.201206181021 (com.salesforce.ide.feature.feature.group 25.0.0.201206181021) requires 'org.eclipse.update.ui 0.0.0' but it could not be found

 

Have I installed something incorrectly or overlooked something?