I'm able to search for developer.garmin.com/downloads/connect-iq/eclipse in Eclipse Mars. I can even click through everything. But after I click finish, I get the following error:
An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Artifact not found:
I can't post the entire error because I got flagged as spam. Basically I get a bunch of artifact not found errors.