Installation of Subclipse 1.8.x fails

I have a clean install (not upgrade) of the latest version of STS, 3.7.2. I attempt to install Subclipse 1.8.x from the following site:

http://subclipse.tigris.org/update_1.8.x

It gets a good amount of the way along, but then ultimately fails with a message saying:

An error occurred while collecting items to be installed
session context was:(profile=DefaultProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,org.springframework.roo.wrapping.protobuf-java-lite,2.3.0.0001

I even tried clearing p2 cache and get the exact same error. I am unable to do the install via Marketplace as the version there is currently Subclipse 1.10.x